Reducing dynamic disorder in small-molecule organic semiconductors by suppressing large-amplitude thermal motions
10.1038/ncomms10736
Crossref journal-article
Springer Science and Business Media LLC
Nature Communications (297)
Abstract

AbstractThermal vibrations and the dynamic disorder they create can detrimentally affect the transport properties of van der Waals bonded molecular semiconductors. The low-energy nature of these vibrations makes it difficult to access them experimentally, which is why we still lack clear molecular design rules to control and reduce dynamic disorder. In this study we discuss the promising organic semiconductors rubrene, 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothio-phene and 2,9-di-decyl-dinaphtho-[2,3-b:20,30-f]-thieno-[3,2-b]-thiophene in terms of an exceptionally low degree of dynamic disorder. In particular, we analyse diffuse scattering in transmission electron microscopy, to show that small molecules that have their side chains attached along the long axis of their conjugated core are better encapsulated in their crystal structure, which helps reduce large-amplitude thermal motions. Our work provides a general strategy for the design of new classes of very high mobility organic semiconductors with a low degree of dynamic disorder.

Bibliography

Illig, S., Eggeman, A. S., Troisi, A., Jiang, L., Warwick, C., Nikolka, M., Schweicher, G., Yeates, S. G., Henri Geerts, Y., Anthony, J. E., & Sirringhaus, H. (2016). Reducing dynamic disorder in small-molecule organic semiconductors by suppressing large-amplitude thermal motions. Nature Communications, 7(1).

Authors 11
  1. Steffen Illig (first)
  2. Alexander S. Eggeman (additional)
  3. Alessandro Troisi (additional)
  4. Lang Jiang (additional)
  5. Chris Warwick (additional)
  6. Mark Nikolka (additional)
  7. Guillaume Schweicher (additional)
  8. Stephen G. Yeates (additional)
  9. Yves Henri Geerts (additional)
  10. John E. Anthony (additional)
  11. Henning Sirringhaus (additional)
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Dates
Type When
Created 9 years, 6 months ago (Feb. 22, 2016, 5:17 a.m.)
Deposited 2 years, 7 months ago (Jan. 4, 2023, 6:52 a.m.)
Indexed 5 days, 21 hours ago (Aug. 19, 2025, 5:57 a.m.)
Issued 9 years, 6 months ago (Feb. 22, 2016)
Published 9 years, 6 months ago (Feb. 22, 2016)
Published Online 9 years, 6 months ago (Feb. 22, 2016)
Funders 0

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@article{Illig_2016, title={Reducing dynamic disorder in small-molecule organic semiconductors by suppressing large-amplitude thermal motions}, volume={7}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/ncomms10736}, DOI={10.1038/ncomms10736}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Illig, Steffen and Eggeman, Alexander S. and Troisi, Alessandro and Jiang, Lang and Warwick, Chris and Nikolka, Mark and Schweicher, Guillaume and Yeates, Stephen G. and Henri Geerts, Yves and Anthony, John E. and Sirringhaus, Henning}, year={2016}, month=feb }