DOI: 10.1038/ncomms13742. Tracking the coherent generation of polaron pairs in conjugated polymers

Tracking the coherent generation of polaron pairs in conjugated polymers

10.1038/ncomms13742

Crossref journal-article

Springer Science and Business Media LLC

Nature Communications (297)

Abstract

AbstractThe optical excitation of organic semiconductors not only generates charge-neutral electron-hole pairs (excitons), but also charge-separated polaron pairs with high yield. The microscopic mechanisms underlying this charge separation have been debated for many years. Here we use ultrafast two-dimensional electronic spectroscopy to study the dynamics of polaron pair formation in a prototypical polymer thin film on a sub-20-fs time scale. We observe multi-period peak oscillations persisting for up to about 1 ps as distinct signatures of vibronic quantum coherence at room temperature. The measured two-dimensional spectra show pronounced peak splittings revealing that the elementary optical excitations of this polymer are hybridized exciton-polaron-pairs, strongly coupled to a dominant underdamped vibrational mode. Coherent vibronic coupling induces ultrafast polaron pair formation, accelerates the charge separation dynamics and makes it insensitive to disorder. These findings open up new perspectives for tailoring light-to-current conversion in organic materials.

Bibliography

De Sio, A., Troiani, F., Maiuri, M., RÃ©hault, J., Sommer, E., Lim, J., Huelga, S. F., Plenio, M. B., Rozzi, C. A., Cerullo, G., Molinari, E., & Lienau, C. (2016). Tracking the coherent generation of polaron pairs in conjugated polymers. Nature Communications, 7(1).

Authors 12

Antonietta De Sio (first)
Filippo Troiani (additional)
Margherita Maiuri (additional)
Julien Réhault (additional)
Ephraim Sommer (additional)
James Lim (additional)
Susana F. Huelga (additional)
Martin B. Plenio (additional)
Carlo Andrea Rozzi (additional)
Giulio Cerullo (additional)
Elisa Molinari (additional)
Christoph Lienau (additional)

References 58 Referenced 174

Yu, G., Gao, J., Hummelen, J. C., Wudl, F. & Heeger, A. J. Polymer photovoltaic cells: enhanced efficiencies via a network of internal donor-acceptor heterojunctions. Science 270, 1789–1791 (1995). (10.1126/science.270.5243.1789) / Science by G Yu (1995)
Li, G., Zhu, R. & Yang, Y. Polymer solar cells. Nat. Photon. 6, 153–161 (2012). (10.1038/nphoton.2012.11) / Nat. Photon. by G Li (2012)
Koezuka, H., Tsumura, A. & Ando, T. Field-effect transistor with polythiophene thin film. Synthetic Met. 18, 699–704 (1987). (10.1016/0379-6779(87)90964-7) / Synthetic Met. by H Koezuka (1987)
Horowitz, G. Organic field-effect transistors. Adv. Mater. 10, 365–377 (1998). (10.1002/(SICI)1521-4095(199803)10:5<365::AID-ADMA365>3.0.CO;2-U) / Adv. Mater. by G Horowitz (1998)
Sekitani, T., Zschieschang, U., Klauk, H. & Someya, T. Flexible organic transistors and circuits with extreme bending stability. Nat. Mater. 9, 1015–1022 (2010). (10.1038/nmat2896) / Nat. Mater. by T Sekitani (2010)
Tang, C. W. & van Slyke, S. A. Organic electroluminescent diodes. Appl. Phys. Lett. 51, 913–915 (1987). (10.1063/1.98799) / Appl. Phys. Lett. by CW Tang (1987)
Burroughes, J. H. et al. Light-emitting diodes based on conjugated polymers. Nature 347, 539–541 (1990). (10.1038/347539a0) / Nature by JH Burroughes (1990)
Reineke, S. et al. White organic light-emitting diodes with fluorescent tube efficiency. Nature 459, 234–238 (2009). (10.1038/nature08003) / Nature by S Reineke (2009)
Kilina, S., Kilin, D. & Tretiak, S. Light-driven and phonon-assisted dynamics in organic and semiconductor nanostructures. Chem. Rev. 115, 5929–5978 (2015). (10.1021/acs.chemrev.5b00012) / Chem. Rev. by S Kilina (2015)
Bredas, J. L. & Street, G. B. Polarons, bipolarons, and solitons in conducting polymers. Accounts Chem. Res. 18, 309–315 (1985). (10.1021/ar00118a005) / Accounts Chem. Res. by JL Bredas (1985)
Reid, O. G., Pensack, R. D., Song, Y., Scholes, G. D. & Rumbles, G. Charge photogeneration in neat conjugated polymers. Chem. Mater. 26, 561–575 (2014). (10.1021/cm4027144) / Chem. Mater. by OG Reid (2014)
Vandewal, K. et al. Efficient charge generation by relaxed charge-transfer states at organic interfaces. Nat. Mater. 13, 63–68 (2014). (10.1038/nmat3807) / Nat. Mater. by K Vandewal (2014)
Moses, D., Dogariu, A. & Heeger, A. J. Ultrafast detection of charged photocarriers in conjugated polymers. Phys. Rev. B 61, 9373–9379 (2000). (10.1103/PhysRevB.61.9373) / Phys. Rev. B by D Moses (2000)
Österbacka, R., An, C. P., Jiang, X. M. & Vardeny, Z. V. Two-dimensional electronic excitations in self-assembled conjugated polymer nanocrystals. Science 287, 839–842 (2000). (10.1126/science.287.5454.839) / Science by R Österbacka (2000)
Guo, J., Ohkita, H., Benten, H. & Ito, S. Near-IR femtosecond transient absorption spectroscopy of ultrafast polaron and triplet exciton formation in polythiophene films with different regioregularities. J. Am. Chem. Soc. 131, 16869–16880 (2009). (10.1021/ja906621a) / J. Am. Chem. Soc. by J Guo (2009)
Song, Y., Clafton, S. N., Pensack, R. D., Kee, T. W. & Scholes, G. D. Vibrational coherence probes the mechanism of ultrafast electron transfer in polymer-fullerene blends. Nat. Commun. 5, 4933 (2014). (10.1038/ncomms5933) / Nat. Commun. by Y Song (2014)
Magnanelli, T. J. & Bragg, A. E. Time-resolved raman spectroscopy of polaron pair formation in poly(3-hexylthiophene) aggregates. J. Phys. Chem. Lett. 6, 438–445 (2015). (10.1021/jz502605j) / J. Phys. Chem. Lett. by TJ Magnanelli (2015)
Song, Y., Hellmann, C., Stingelin, N. & Scholes, G. D. The separation of vibrational coherence from ground- and excited-electronic states in P3HT film. J. Chem. Phys. 142, 212410 (2015). (10.1063/1.4916325) / J. Chem. Phys. by Y Song (2015)
Tautz, R. et al. Charge photogeneration in donor-acceptor conjugated materials: influence of excess excitation energy and chain length. J. Am. Chem. Soc. 135, 4282–4290 (2013). (10.1021/ja309252a) / J. Am. Chem. Soc. by R Tautz (2013)
Tautz, R. et al. Structural correlations in the generation of polaron pairs in low-bandgap polymers for photovoltaics. Nat. Commun. 3, 970 (2012). (10.1038/ncomms1967) / Nat. Commun. by R Tautz (2012)
Pensack, R. D. & Asbury, J. B. Beyond the adiabatic limit: charge photogeneration in organic photovoltaic materials. J. Phys. Chem. Lett. 1, 2255–2263 (2010). (10.1021/jz1005225) / J. Phys. Chem. Lett. by RD Pensack (2010)
Kaake, L. G. et al. Photoinduced charge generation in a molecular bulk heterojunction material. J. Am. Chem. Soc. 134, 19828–19838 (2012). (10.1021/ja308949m) / J. Am. Chem. Soc. by LG Kaake (2012)
Pochas, C. M. & Spano, F. C. New insights on the nature of two-dimensional polarons in semiconducting polymers: Infrared absorption in poly(3-hexylthiophene). J. Chem. Phys. 140, 244902 (2014). (10.1063/1.4882696) / J. Chem. Phys. by CM Pochas (2014)
Tamura, H., Martinazzo, R., Ruckenbauer, M. & Burghardt, I. Quantum dynamics of ultrafast charge transfer at an oligothiophene-fullerene heterojunction. J. Chem. Phys. 137, 22A540 (2012). (10.1063/1.4751486) / J. Chem. Phys. by H Tamura (2012)
Holstein, T. Studies of polaron motion: Part I. The molecular-crystal model. Ann. Phys. 8, 325–342 (1959). (10.1016/0003-4916(59)90002-8) / Ann. Phys. by T Holstein (1959)
Collini, E. & Scholes, G. D. Coherent intrachain energy migration in a conjugated polymer at room temperature. Science 323, 369–373 (2009). (10.1126/science.1164016) / Science by E Collini (2009)
Engel, G. S. et al. Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems. Nature 446, 782–786 (2007). (10.1038/nature05678) / Nature by GS Engel (2007)
Chin, A. W. et al. The role of non-equilibrium vibrational structures in electronic coherence and recoherence in pigment-protein complexes. Nat. Phys. 9, 113–118 (2013). (10.1038/nphys2515) / Nat. Phys. by AW Chin (2013)
Prior, J., Chin, A. W., Huelga, S. F. & Plenio, M. B. Efficient simulation of strong system-environment interactions. Phys. Rev. Lett. 105, 050404 (2010). (10.1103/PhysRevLett.105.050404) / Phys. Rev. Lett. by J Prior (2010)
Rozzi, C. A. et al. Quantum coherence controls the charge separation in a prototypical artificial light-harvesting system. Nat. Commun. 4, 1602 (2013). (10.1038/ncomms2603) / Nat. Commun. by CA Rozzi (2013)
Tamura, H. & Burghardt, I. Ultrafast charge separation in organic photovoltaics enhanced by charge delocalization and vibronically hot exciton dissociation. J. Am. Chem. Soc. 135, 16364–16367 (2013). (10.1021/ja4093874) / J. Am. Chem. Soc. by H Tamura (2013)
Gélinas, S. et al. Ultrafast long-range charge separation in organic semiconductor photovoltaic diodes. Science 343, 512–516 (2014). (10.1126/science.1246249) / Science by S Gélinas (2014)
Falke, S. M. et al. Coherent ultrafast charge transfer in an organic photovoltaic blend. Science 344, 1001–1005 (2014). (10.1126/science.1249771) / Science by SM Falke (2014)
Christensson, N., Kauffmann, H. F., Pullerits, T. & Mančal, T. Origin of long-lived coherences in light-harvesting complexes. J. Phys. Chem. B 116, 7449–7454 (2012). (10.1021/jp304649c) / J. Phys. Chem. B by N Christensson (2012)
Tiwari, V., Peters, W. K. & Jonas, D. M. Electronic resonance with anticorrelated pigment vibrations drives photosynthetic energy transfer outside the adiabatic framework. Proc. Natl Acad. Sci. USA 110, 1203–1208 (2013). (10.1073/pnas.1211157110) / Proc. Natl Acad. Sci. USA by V Tiwari (2013)
Fuller, F. D. et al. Vibronic coherence in oxygenic photosynthesis. Nat. Chem. 6, 706–711 (2014). (10.1038/nchem.2005) / Nat. Chem. by FD Fuller (2014)
Romero, E. et al. Quantum coherence in photosynthesis for efficient solar-energy conversion. Nat. Phys. 10, 676–682 (2014). (10.1038/nphys3017) / Nat. Phys. by E Romero (2014)
Ludwigs, S. P3HT Revisited: from Molecular Scale to Solar Cell Devices Springer (2014). (10.1007/978-3-662-45145-8)
Clark, J., Silva, C., Friend, R. H. & Spano, F. C. Role of intermolecular coupling in the photophysics of disordered organic semiconductors: aggregate emission in regioregular polythiophene. Phys. Rev. Lett. 98, 206406 (2007). (10.1103/PhysRevLett.98.206406) / Phys. Rev. Lett. by J Clark (2007)
Howard, I. A., Mauer, R., Meister, M. & Laquai, F. Effect of morphology on ultrafast free carrier generation in polythiophene:fullerene organic solar cells. J. Am. Chem. Soc. 132, 14866–14876 (2010). (10.1021/ja105260d) / J. Am. Chem. Soc. by IA Howard (2010)
Hendry, E., Schins, J. M., Candeias, L. P., Siebbeles, L. D. A. & Bonn, M. Efficiency of exciton and charge carrier photogeneration in a semiconducting polymer. Phys. Rev. Lett. 92, 196601 (2004). (10.1103/PhysRevLett.92.196601) / Phys. Rev. Lett. by E Hendry (2004)
Hendry, E., Koeberg, M., Schins, J. M., Siebbeles, L. D. A. & Bonn, M. Free carrier photogeneration in polythiophene versus poly(phenylene qvinylene) studied with THz spectroscopy. Chem. Phys. Lett. 432, 441–445 (2006). (10.1016/j.cplett.2006.10.105) / Chem. Phys. Lett. by E Hendry (2006)
Falke, S., Eravuchira, P., Materny, A. & Lienau, C. Raman spectroscopic identification of fullerene inclusions in polymer/fullerene blends. J. Raman Spectrosc. 42, 1897–1900 (2011). (10.1002/jrs.2966) / J. Raman Spectrosc. by S Falke (2011)
Su, W. P., Schrieffer, J. R. & Heeger, A. J. Soliton excitations in polyacetylene. Phys. Rev. B 22, 2099–2111 (1980). (10.1103/PhysRevB.22.2099) / Phys. Rev. B by WP Su (1980)
Renger, T. Theory of optical spectra involving charge transfer states: dynamic localization predicts a temperature dependent optical band shift. Phys. Rev. Lett. 93, 188101 (2004). (10.1103/PhysRevLett.93.188101) / Phys. Rev. Lett. by T Renger (2004)
Mančal, T., Valkunas, L. & Fleming, G. R. Theory of exciton-charge transfer state coupled systems. Chem. Phys. Lett. 432, 301–305 (2006). (10.1016/j.cplett.2006.10.055) / Chem. Phys. Lett. by T Mančal (2006)
Yamagata, H. et al. The nature of singlet excitons in oligoacene molecular crystals. J. Chem. Phys. 134, 204703 (2011). (10.1063/1.3590871) / J. Chem. Phys. by H Yamagata (2011)
Vasa, P. et al. Real-time observation of ultrafast Rabi oscillations between excitons and plasmons in metal nanostructures with J-aggregates. Nat. Photon. 7, 128–132 (2013). (10.1038/nphoton.2012.340) / Nat. Photon. by P Vasa (2013)
Sirringhaus, H. et al. Two-dimensional charge transport in self-organized, high-mobility conjugated polymers. Nature 401, 685–688 (1999). (10.1038/44359) / Nature by H Sirringhaus (1999)
Salleo, A., Kline, R. J., DeLongchamp, D. M. & Chabinyc, M. L. Microstructural characterization and charge transport in thin films of conjugated polymers. Adv. Mater. 22, 3812–3838 (2010). (10.1002/adma.200903712) / Adv. Mater. by A Salleo (2010)
Li, G. et al. ‘Solvent annealing’ effect in polymer solar cells based on poly(3-hexylthiophene) and methanofullerenes. Adv. Funct. Mater. 17, 1636–1644 (2007). (10.1002/adfm.200600624) / Adv. Funct. Mater. by G Li (2007)
Zen, A. et al. Effect of molecular weight and annealing of poly(3-hexylthiophene)s on the performance of organic field-effect transistors. Adv. Funct. Mater. 14, 757–764 (2004). (10.1002/adfm.200400017) / Adv. Funct. Mater. by A Zen (2004)
Clark, J., Chang, J.-F., Spano, F. C., Friend, R. H. & Silva, C. Determining exciton bandwidth and film microstructure in polythiophene films using linear absorption spectroscopy. Appl. Phys. Lett. 94, 163306 (2009). (10.1063/1.3110904) / Appl. Phys. Lett. by J Clark (2009)
Intonti, F. et al. quantum mechanical repulsion of exciton levels in a disordered quantum well. Phys. Rev. Lett. 87, 076801 (2001). (10.1103/PhysRevLett.87.076801) / Phys. Rev. Lett. by F Intonti (2001)
Tamura, H., Burghardt, I. & Tsukada, M. Exciton dissociation at thiophene/fullerene interfaces: the electronic structures and quantum dynamics. J. Phys. Chem. C 115, 10205–10210 (2011). (10.1021/jp203174e) / J. Phys. Chem. C by H Tamura (2011)
Orgiu, E. et al. Conductivity in organic semiconductors hybridized with the vacuum field. Nat. Mater. 14, 1123–1129 (2015). (10.1038/nmat4392) / Nat. Mater. by E Orgiu (2015)
Brida, D., Manzoni, C. & Cerullo, G. Phase-locked pulses for two-dimensional spectroscopy by a birefringent delay line. Opt. Lett. 37, 3027–3029 (2012). (10.1364/OL.37.003027) / Opt. Lett. by D Brida (2012)
Réhault, J., Maiuri, M., Oriana, A. & Cerullo, G. Two-dimensional electronic spectroscopy with birefringent wedges. Rev. Sci. Instrum. 85, 123107 (2014). (10.1063/1.4902938) / Rev. Sci. Instrum. by J Réhault (2014)

Dates

Type	When
Created	8 years, 8 months ago (Dec. 8, 2016, 5:09 a.m.)
Deposited	2 years, 7 months ago (Jan. 4, 2023, 4:31 a.m.)
Indexed	1 week, 2 days ago (Aug. 21, 2025, 1:58 p.m.)
Issued	8 years, 8 months ago (Dec. 8, 2016)
Published	8 years, 8 months ago (Dec. 8, 2016)
Published Online	8 years, 8 months ago (Dec. 8, 2016)

Funders 0

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BibTeX

@article{De_Sio_2016, title={Tracking the coherent generation of polaron pairs in conjugated polymers}, volume={7}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/ncomms13742}, DOI={10.1038/ncomms13742}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={De Sio, Antonietta and Troiani, Filippo and Maiuri, Margherita and Réhault, Julien and Sommer, Ephraim and Lim, James and Huelga, Susana F. and Plenio, Martin B. and Rozzi, Carlo Andrea and Cerullo, Giulio and Molinari, Elisa and Lienau, Christoph}, year={2016}, month=dec }

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  "abstract": "<jats:title>Abstract</jats:title><jats:p>The optical excitation of organic semiconductors not only generates charge-neutral electron-hole pairs (excitons), but also charge-separated polaron pairs with high yield. The microscopic mechanisms underlying this charge separation have been debated for many years. Here we use ultrafast two-dimensional electronic spectroscopy to study the dynamics of polaron pair formation in a prototypical polymer thin film on a sub-20-fs time scale. We observe multi-period peak oscillations persisting for up to about 1\u2009ps as distinct signatures of vibronic quantum coherence at room temperature. The measured two-dimensional spectra show pronounced peak splittings revealing that the elementary optical excitations of this polymer are hybridized exciton-polaron-pairs, strongly coupled to a dominant underdamped vibrational mode. Coherent vibronic coupling induces ultrafast polaron pair formation, accelerates the charge separation dynamics and makes it insensitive to disorder. These findings open up new perspectives for tailoring light-to-current conversion in organic materials.</jats:p>",
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      "author": "G Horowitz",
      "year": "1998",
      "unstructured": "Horowitz, G. Organic field-effect transistors. Adv. Mater. 10, 365\u2013377 (1998).",
      "journal-title": "Adv. Mater."
    },
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      "volume": "115",
      "author": "S Kilina",
      "year": "2015",
      "unstructured": "Kilina, S., Kilin, D. & Tretiak, S. Light-driven and phonon-assisted dynamics in organic and semiconductor nanostructures. Chem. Rev. 115, 5929\u20135978 (2015).",
      "journal-title": "Chem. Rev."
    },
    {
      "key": "BFncomms13742_CR10",
      "doi-asserted-by": "publisher",
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      "DOI": "10.1021/ar00118a005",
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      "author": "JL Bredas",
      "year": "1985",
      "unstructured": "Bredas, J. L. & Street, G. B. Polarons, bipolarons, and solitons in conducting polymers. Accounts Chem. Res. 18, 309\u2013315 (1985).",
      "journal-title": "Accounts Chem. Res."
    },
    {
      "key": "BFncomms13742_CR11",
      "doi-asserted-by": "publisher",
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      "DOI": "10.1021/cm4027144",
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      "author": "OG Reid",
      "year": "2014",
      "unstructured": "Reid, O. G., Pensack, R. D., Song, Y., Scholes, G. D. & Rumbles, G. Charge photogeneration in neat conjugated polymers. Chem. Mater. 26, 561\u2013575 (2014).",
      "journal-title": "Chem. Mater."
    },
    {
      "key": "BFncomms13742_CR12",
      "doi-asserted-by": "publisher",
      "first-page": "63",
      "DOI": "10.1038/nmat3807",
      "volume": "13",
      "author": "K Vandewal",
      "year": "2014",
      "unstructured": "Vandewal, K. et al. Efficient charge generation by relaxed charge-transfer states at organic interfaces. Nat. Mater. 13, 63\u201368 (2014).",
      "journal-title": "Nat. Mater."
    },
    {
      "key": "BFncomms13742_CR13",
      "doi-asserted-by": "publisher",
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      "DOI": "10.1103/PhysRevB.61.9373",
      "volume": "61",
      "author": "D Moses",
      "year": "2000",
      "unstructured": "Moses, D., Dogariu, A. & Heeger, A. J. Ultrafast detection of charged photocarriers in conjugated polymers. Phys. Rev. B 61, 9373\u20139379 (2000).",
      "journal-title": "Phys. Rev. B"
    },
    {
      "key": "BFncomms13742_CR14",
      "doi-asserted-by": "publisher",
      "first-page": "839",
      "DOI": "10.1126/science.287.5454.839",
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      "author": "R \u00d6sterbacka",
      "year": "2000",
      "unstructured": "\u00d6sterbacka, R., An, C. P., Jiang, X. M. & Vardeny, Z. V. Two-dimensional electronic excitations in self-assembled conjugated polymer nanocrystals. Science 287, 839\u2013842 (2000).",
      "journal-title": "Science"
    },
    {
      "key": "BFncomms13742_CR15",
      "doi-asserted-by": "publisher",
      "first-page": "16869",
      "DOI": "10.1021/ja906621a",
      "volume": "131",
      "author": "J Guo",
      "year": "2009",
      "unstructured": "Guo, J., Ohkita, H., Benten, H. & Ito, S. Near-IR femtosecond transient absorption spectroscopy of ultrafast polaron and triplet exciton formation in polythiophene films with different regioregularities. J. Am. Chem. Soc. 131, 16869\u201316880 (2009).",
      "journal-title": "J. Am. Chem. Soc."
    },
    {
      "key": "BFncomms13742_CR16",
      "doi-asserted-by": "publisher",
      "first-page": "4933",
      "DOI": "10.1038/ncomms5933",
      "volume": "5",
      "author": "Y Song",
      "year": "2014",
      "unstructured": "Song, Y., Clafton, S. N., Pensack, R. D., Kee, T. W. & Scholes, G. D. Vibrational coherence probes the mechanism of ultrafast electron transfer in polymer-fullerene blends. Nat. Commun. 5, 4933 (2014).",
      "journal-title": "Nat. Commun."
    },
    {
      "key": "BFncomms13742_CR17",
      "doi-asserted-by": "publisher",
      "first-page": "438",
      "DOI": "10.1021/jz502605j",
      "volume": "6",
      "author": "TJ Magnanelli",
      "year": "2015",
      "unstructured": "Magnanelli, T. J. & Bragg, A. E. Time-resolved raman spectroscopy of polaron pair formation in poly(3-hexylthiophene) aggregates. J. Phys. Chem. Lett. 6, 438\u2013445 (2015).",
      "journal-title": "J. Phys. Chem. Lett."
    },
    {
      "key": "BFncomms13742_CR18",
      "doi-asserted-by": "publisher",
      "first-page": "212410",
      "DOI": "10.1063/1.4916325",
      "volume": "142",
      "author": "Y Song",
      "year": "2015",
      "unstructured": "Song, Y., Hellmann, C., Stingelin, N. & Scholes, G. D. The separation of vibrational coherence from ground- and excited-electronic states in P3HT film. J. Chem. Phys. 142, 212410 (2015).",
      "journal-title": "J. Chem. Phys."
    },
    {
      "key": "BFncomms13742_CR19",
      "doi-asserted-by": "publisher",
      "first-page": "4282",
      "DOI": "10.1021/ja309252a",
      "volume": "135",
      "author": "R Tautz",
      "year": "2013",
      "unstructured": "Tautz, R. et al. Charge photogeneration in donor-acceptor conjugated materials: influence of excess excitation energy and chain length. J. Am. Chem. Soc. 135, 4282\u20134290 (2013).",
      "journal-title": "J. Am. Chem. Soc."
    },
    {
      "key": "BFncomms13742_CR20",
      "doi-asserted-by": "publisher",
      "first-page": "970",
      "DOI": "10.1038/ncomms1967",
      "volume": "3",
      "author": "R Tautz",
      "year": "2012",
      "unstructured": "Tautz, R. et al. Structural correlations in the generation of polaron pairs in low-bandgap polymers for photovoltaics. Nat. Commun. 3, 970 (2012).",
      "journal-title": "Nat. Commun."
    },
    {
      "key": "BFncomms13742_CR21",
      "doi-asserted-by": "publisher",
      "first-page": "2255",
      "DOI": "10.1021/jz1005225",
      "volume": "1",
      "author": "RD Pensack",
      "year": "2010",
      "unstructured": "Pensack, R. D. & Asbury, J. B. Beyond the adiabatic limit: charge photogeneration in organic photovoltaic materials. J. Phys. Chem. Lett. 1, 2255\u20132263 (2010).",
      "journal-title": "J. Phys. Chem. Lett."
    },
    {
      "key": "BFncomms13742_CR22",
      "doi-asserted-by": "publisher",
      "first-page": "19828",
      "DOI": "10.1021/ja308949m",
      "volume": "134",
      "author": "LG Kaake",
      "year": "2012",
      "unstructured": "Kaake, L. G. et al. Photoinduced charge generation in a molecular bulk heterojunction material. J. Am. Chem. Soc. 134, 19828\u201319838 (2012).",
      "journal-title": "J. Am. Chem. Soc."
    },
    {
      "key": "BFncomms13742_CR23",
      "doi-asserted-by": "publisher",
      "first-page": "244902",
      "DOI": "10.1063/1.4882696",
      "volume": "140",
      "author": "CM Pochas",
      "year": "2014",
      "unstructured": "Pochas, C. M. & Spano, F. C. New insights on the nature of two-dimensional polarons in semiconducting polymers: Infrared absorption in poly(3-hexylthiophene). J. Chem. Phys. 140, 244902 (2014).",
      "journal-title": "J. Chem. Phys."
    },
    {
      "key": "BFncomms13742_CR24",
      "doi-asserted-by": "publisher",
      "first-page": "22A540",
      "DOI": "10.1063/1.4751486",
      "volume": "137",
      "author": "H Tamura",
      "year": "2012",
      "unstructured": "Tamura, H., Martinazzo, R., Ruckenbauer, M. & Burghardt, I. Quantum dynamics of ultrafast charge transfer at an oligothiophene-fullerene heterojunction. J. Chem. Phys. 137, 22A540 (2012).",
      "journal-title": "J. Chem. Phys."
    },
    {
      "key": "BFncomms13742_CR25",
      "doi-asserted-by": "publisher",
      "first-page": "325",
      "DOI": "10.1016/0003-4916(59)90002-8",
      "volume": "8",
      "author": "T Holstein",
      "year": "1959",
      "unstructured": "Holstein, T. Studies of polaron motion: Part I. The molecular-crystal model. Ann. Phys. 8, 325\u2013342 (1959).",
      "journal-title": "Ann. Phys."
    },
    {
      "key": "BFncomms13742_CR26",
      "doi-asserted-by": "publisher",
      "first-page": "369",
      "DOI": "10.1126/science.1164016",
      "volume": "323",
      "author": "E Collini",
      "year": "2009",
      "unstructured": "Collini, E. & Scholes, G. D. Coherent intrachain energy migration in a conjugated polymer at room temperature. Science 323, 369\u2013373 (2009).",
      "journal-title": "Science"
    },
    {
      "key": "BFncomms13742_CR27",
      "doi-asserted-by": "publisher",
      "first-page": "782",
      "DOI": "10.1038/nature05678",
      "volume": "446",
      "author": "GS Engel",
      "year": "2007",
      "unstructured": "Engel, G. S. et al. Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems. Nature 446, 782\u2013786 (2007).",
      "journal-title": "Nature"
    },
    {
      "key": "BFncomms13742_CR28",
      "doi-asserted-by": "publisher",
      "first-page": "113",
      "DOI": "10.1038/nphys2515",
      "volume": "9",
      "author": "AW Chin",
      "year": "2013",
      "unstructured": "Chin, A. W. et al. The role of non-equilibrium vibrational structures in electronic coherence and recoherence in pigment-protein complexes. Nat. Phys. 9, 113\u2013118 (2013).",
      "journal-title": "Nat. Phys."
    },
    {
      "key": "BFncomms13742_CR29",
      "doi-asserted-by": "publisher",
      "first-page": "050404",
      "DOI": "10.1103/PhysRevLett.105.050404",
      "volume": "105",
      "author": "J Prior",
      "year": "2010",
      "unstructured": "Prior, J., Chin, A. W., Huelga, S. F. & Plenio, M. B. Efficient simulation of strong system-environment interactions. Phys. Rev. Lett. 105, 050404 (2010).",
      "journal-title": "Phys. Rev. Lett."
    },
    {
      "key": "BFncomms13742_CR30",
      "doi-asserted-by": "publisher",
      "first-page": "1602",
      "DOI": "10.1038/ncomms2603",
      "volume": "4",
      "author": "CA Rozzi",
      "year": "2013",
      "unstructured": "Rozzi, C. A. et al. Quantum coherence controls the charge separation in a prototypical artificial light-harvesting system. Nat. Commun. 4, 1602 (2013).",
      "journal-title": "Nat. Commun."
    },
    {
      "key": "BFncomms13742_CR31",
      "doi-asserted-by": "publisher",
      "first-page": "16364",
      "DOI": "10.1021/ja4093874",
      "volume": "135",
      "author": "H Tamura",
      "year": "2013",
      "unstructured": "Tamura, H. & Burghardt, I. Ultrafast charge separation in organic photovoltaics enhanced by charge delocalization and vibronically hot exciton dissociation. J. Am. Chem. Soc. 135, 16364\u201316367 (2013).",
      "journal-title": "J. Am. Chem. Soc."
    },
    {
      "key": "BFncomms13742_CR32",
      "doi-asserted-by": "publisher",
      "first-page": "512",
      "DOI": "10.1126/science.1246249",
      "volume": "343",
      "author": "S G\u00e9linas",
      "year": "2014",
      "unstructured": "G\u00e9linas, S. et al. Ultrafast long-range charge separation in organic semiconductor photovoltaic diodes. Science 343, 512\u2013516 (2014).",
      "journal-title": "Science"
    },
    {
      "key": "BFncomms13742_CR33",
      "doi-asserted-by": "publisher",
      "first-page": "1001",
      "DOI": "10.1126/science.1249771",
      "volume": "344",
      "author": "SM Falke",
      "year": "2014",
      "unstructured": "Falke, S. M. et al. Coherent ultrafast charge transfer in an organic photovoltaic blend. Science 344, 1001\u20131005 (2014).",
      "journal-title": "Science"
    },
    {
      "key": "BFncomms13742_CR34",
      "doi-asserted-by": "publisher",
      "first-page": "7449",
      "DOI": "10.1021/jp304649c",
      "volume": "116",
      "author": "N Christensson",
      "year": "2012",
      "unstructured": "Christensson, N., Kauffmann, H. F., Pullerits, T. & Man\u010dal, T. Origin of long-lived coherences in light-harvesting complexes. J. Phys. Chem. B 116, 7449\u20137454 (2012).",
      "journal-title": "J. Phys. Chem. B"
    },
    {
      "key": "BFncomms13742_CR35",
      "doi-asserted-by": "publisher",
      "first-page": "1203",
      "DOI": "10.1073/pnas.1211157110",
      "volume": "110",
      "author": "V Tiwari",
      "year": "2013",
      "unstructured": "Tiwari, V., Peters, W. K. & Jonas, D. M. Electronic resonance with anticorrelated pigment vibrations drives photosynthetic energy transfer outside the adiabatic framework. Proc. Natl Acad. Sci. USA 110, 1203\u20131208 (2013).",
      "journal-title": "Proc. Natl Acad. Sci. USA"
    },
    {
      "key": "BFncomms13742_CR36",
      "doi-asserted-by": "publisher",
      "first-page": "706",
      "DOI": "10.1038/nchem.2005",
      "volume": "6",
      "author": "FD Fuller",
      "year": "2014",
      "unstructured": "Fuller, F. D. et al. Vibronic coherence in oxygenic photosynthesis. Nat. Chem. 6, 706\u2013711 (2014).",
      "journal-title": "Nat. Chem."
    },
    {
      "key": "BFncomms13742_CR37",
      "doi-asserted-by": "publisher",
      "first-page": "676",
      "DOI": "10.1038/nphys3017",
      "volume": "10",
      "author": "E Romero",
      "year": "2014",
      "unstructured": "Romero, E. et al. Quantum coherence in photosynthesis for efficient solar-energy conversion. Nat. Phys. 10, 676\u2013682 (2014).",
      "journal-title": "Nat. Phys."
    },
    {
      "doi-asserted-by": "crossref",
      "unstructured": "Ludwigs, S. P3HT Revisited: from Molecular Scale to Solar Cell Devices Springer (2014).",
      "key": "BFncomms13742_CR38",
      "DOI": "10.1007/978-3-662-45145-8"
    },
    {
      "key": "BFncomms13742_CR39",
      "doi-asserted-by": "publisher",
      "first-page": "206406",
      "DOI": "10.1103/PhysRevLett.98.206406",
      "volume": "98",
      "author": "J Clark",
      "year": "2007",
      "unstructured": "Clark, J., Silva, C., Friend, R. H. & Spano, F. C. Role of intermolecular coupling in the photophysics of disordered organic semiconductors: aggregate emission in regioregular polythiophene. Phys. Rev. Lett. 98, 206406 (2007).",
      "journal-title": "Phys. Rev. Lett."
    },
    {
      "key": "BFncomms13742_CR40",
      "doi-asserted-by": "publisher",
      "first-page": "14866",
      "DOI": "10.1021/ja105260d",
      "volume": "132",
      "author": "IA Howard",
      "year": "2010",
      "unstructured": "Howard, I. A., Mauer, R., Meister, M. & Laquai, F. Effect of morphology on ultrafast free carrier generation in polythiophene:fullerene organic solar cells. J. Am. Chem. Soc. 132, 14866\u201314876 (2010).",
      "journal-title": "J. Am. Chem. Soc."
    },
    {
      "key": "BFncomms13742_CR41",
      "doi-asserted-by": "publisher",
      "first-page": "196601",
      "DOI": "10.1103/PhysRevLett.92.196601",
      "volume": "92",
      "author": "E Hendry",
      "year": "2004",
      "unstructured": "Hendry, E., Schins, J. M., Candeias, L. P., Siebbeles, L. D. A. & Bonn, M. Efficiency of exciton and charge carrier photogeneration in a semiconducting polymer. Phys. Rev. Lett. 92, 196601 (2004).",
      "journal-title": "Phys. Rev. Lett."
    },
    {
      "key": "BFncomms13742_CR42",
      "doi-asserted-by": "publisher",
      "first-page": "441",
      "DOI": "10.1016/j.cplett.2006.10.105",
      "volume": "432",
      "author": "E Hendry",
      "year": "2006",
      "unstructured": "Hendry, E., Koeberg, M., Schins, J. M., Siebbeles, L. D. A. & Bonn, M. Free carrier photogeneration in polythiophene versus poly(phenylene qvinylene) studied with THz spectroscopy. Chem. Phys. Lett. 432, 441\u2013445 (2006).",
      "journal-title": "Chem. Phys. Lett."
    },
    {
      "key": "BFncomms13742_CR43",
      "doi-asserted-by": "publisher",
      "first-page": "1897",
      "DOI": "10.1002/jrs.2966",
      "volume": "42",
      "author": "S Falke",
      "year": "2011",
      "unstructured": "Falke, S., Eravuchira, P., Materny, A. & Lienau, C. Raman spectroscopic identification of fullerene inclusions in polymer/fullerene blends. J. Raman Spectrosc. 42, 1897\u20131900 (2011).",
      "journal-title": "J. Raman Spectrosc."
    },
    {
      "key": "BFncomms13742_CR44",
      "doi-asserted-by": "publisher",
      "first-page": "2099",
      "DOI": "10.1103/PhysRevB.22.2099",
      "volume": "22",
      "author": "WP Su",
      "year": "1980",
      "unstructured": "Su, W. P., Schrieffer, J. R. & Heeger, A. J. Soliton excitations in polyacetylene. Phys. Rev. B 22, 2099\u20132111 (1980).",
      "journal-title": "Phys. Rev. B"
    },
    {
      "key": "BFncomms13742_CR45",
      "doi-asserted-by": "publisher",
      "first-page": "188101",
      "DOI": "10.1103/PhysRevLett.93.188101",
      "volume": "93",
      "author": "T Renger",
      "year": "2004",
      "unstructured": "Renger, T. Theory of optical spectra involving charge transfer states: dynamic localization predicts a temperature dependent optical band shift. Phys. Rev. Lett. 93, 188101 (2004).",
      "journal-title": "Phys. Rev. Lett."
    },
    {
      "key": "BFncomms13742_CR46",
      "doi-asserted-by": "publisher",
      "first-page": "301",
      "DOI": "10.1016/j.cplett.2006.10.055",
      "volume": "432",
      "author": "T Man\u010dal",
      "year": "2006",
      "unstructured": "Man\u010dal, T., Valkunas, L. & Fleming, G. R. Theory of exciton-charge transfer state coupled systems. Chem. Phys. Lett. 432, 301\u2013305 (2006).",
      "journal-title": "Chem. Phys. Lett."
    },
    {
      "key": "BFncomms13742_CR47",
      "doi-asserted-by": "publisher",
      "first-page": "204703",
      "DOI": "10.1063/1.3590871",
      "volume": "134",
      "author": "H Yamagata",
      "year": "2011",
      "unstructured": "Yamagata, H. et al. The nature of singlet excitons in oligoacene molecular crystals. J. Chem. Phys. 134, 204703 (2011).",
      "journal-title": "J. Chem. Phys."
    },
    {
      "key": "BFncomms13742_CR48",
      "doi-asserted-by": "publisher",
      "first-page": "128",
      "DOI": "10.1038/nphoton.2012.340",
      "volume": "7",
      "author": "P Vasa",
      "year": "2013",
      "unstructured": "Vasa, P. et al. Real-time observation of ultrafast Rabi oscillations between excitons and plasmons in metal nanostructures with J-aggregates. Nat. Photon. 7, 128\u2013132 (2013).",
      "journal-title": "Nat. Photon."
    },
    {
      "key": "BFncomms13742_CR49",
      "doi-asserted-by": "publisher",
      "first-page": "685",
      "DOI": "10.1038/44359",
      "volume": "401",
      "author": "H Sirringhaus",
      "year": "1999",
      "unstructured": "Sirringhaus, H. et al. Two-dimensional charge transport in self-organized, high-mobility conjugated polymers. Nature 401, 685\u2013688 (1999).",
      "journal-title": "Nature"
    },
    {
      "key": "BFncomms13742_CR50",
      "doi-asserted-by": "publisher",
      "first-page": "3812",
      "DOI": "10.1002/adma.200903712",
      "volume": "22",
      "author": "A Salleo",
      "year": "2010",
      "unstructured": "Salleo, A., Kline, R. J., DeLongchamp, D. M. & Chabinyc, M. L. Microstructural characterization and charge transport in thin films of conjugated polymers. Adv. Mater. 22, 3812\u20133838 (2010).",
      "journal-title": "Adv. Mater."
    },
    {
      "key": "BFncomms13742_CR51",
      "doi-asserted-by": "publisher",
      "first-page": "1636",
      "DOI": "10.1002/adfm.200600624",
      "volume": "17",
      "author": "G Li",
      "year": "2007",
      "unstructured": "Li, G. et al. \u2018Solvent annealing\u2019 effect in polymer solar cells based on poly(3-hexylthiophene) and methanofullerenes. Adv. Funct. Mater. 17, 1636\u20131644 (2007).",
      "journal-title": "Adv. Funct. Mater."
    },
    {
      "key": "BFncomms13742_CR52",
      "doi-asserted-by": "publisher",
      "first-page": "757",
      "DOI": "10.1002/adfm.200400017",
      "volume": "14",
      "author": "A Zen",
      "year": "2004",
      "unstructured": "Zen, A. et al. Effect of molecular weight and annealing of poly(3-hexylthiophene)s on the performance of organic field-effect transistors. Adv. Funct. Mater. 14, 757\u2013764 (2004).",
      "journal-title": "Adv. Funct. Mater."
    },
    {
      "key": "BFncomms13742_CR53",
      "doi-asserted-by": "publisher",
      "first-page": "163306",
      "DOI": "10.1063/1.3110904",
      "volume": "94",
      "author": "J Clark",
      "year": "2009",
      "unstructured": "Clark, J., Chang, J.-F., Spano, F. C., Friend, R. H. & Silva, C. Determining exciton bandwidth and film microstructure in polythiophene films using linear absorption spectroscopy. Appl. Phys. Lett. 94, 163306 (2009).",
      "journal-title": "Appl. Phys. Lett."
    },
    {
      "key": "BFncomms13742_CR54",
      "doi-asserted-by": "publisher",
      "first-page": "076801",
      "DOI": "10.1103/PhysRevLett.87.076801",
      "volume": "87",
      "author": "F Intonti",
      "year": "2001",
      "unstructured": "Intonti, F. et al. quantum mechanical repulsion of exciton levels in a disordered quantum well. Phys. Rev. Lett. 87, 076801 (2001).",
      "journal-title": "Phys. Rev. Lett."
    },
    {
      "key": "BFncomms13742_CR55",
      "doi-asserted-by": "publisher",
      "first-page": "10205",
      "DOI": "10.1021/jp203174e",
      "volume": "115",
      "author": "H Tamura",
      "year": "2011",
      "unstructured": "Tamura, H., Burghardt, I. & Tsukada, M. Exciton dissociation at thiophene/fullerene interfaces: the electronic structures and quantum dynamics. J. Phys. Chem. C 115, 10205\u201310210 (2011).",
      "journal-title": "J. Phys. Chem. C"
    },
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