DOI: 10.1002/adma.200600114. Suppression of Energy‐Transfer Between Conjugated Polymers in a Ternary Blend Identified Using Scanning Near‐Field Optical Microscopy

Suppression of Energy‐Transfer Between Conjugated Polymers in a Ternary Blend Identified Using Scanning Near‐Field Optical Microscopy

10.1002/adma.200600114

Crossref journal-article

Wiley

Advanced Materials (311)

Bibliography

Cadby, A., Dean, R., Jones, R. A. L., & Lidzey, D. G. (2006). Suppression of EnergyâTransfer Between Conjugated Polymers in a Ternary Blend Identified Using Scanning NearâField Optical Microscopy. Advanced Materials, 18(20), 2713â2719. Portico.

Authors 4

A. Cadby (first)
R. Dean (additional)
R. A. L. Jones (additional)
D. G. Lidzey (additional)

References 40 Referenced 18

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10.1088/0953-8984/14/47/301
S. Walheim M. Bôltau U. Steiner inPolymer Surfaces and Interfaces 3rd ed. (Eds: R. W. Richards S. K. Peace) Wiley New York1999.
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{'key': 'e_1_2_1_27_2', 'first-page': '141', 'volume': '5214', 'author': 'Kreouzis T.', 'year': '2004', 'journal-title': 'Proc. SPIE—Int. Soc. Opt. Eng.'} / Proc. SPIE—Int. Soc. Opt. Eng. by Kreouzis T. (2004)
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The fluorescence quantum efficiency (Φ) is defined as Φ = τobs/τrad where τobsis the observed fluorescence decay lifetime and τradis the natural radiative decay lifetime. If we neglect possible electronic interactions between polymer molecules and thus assume that the intrinsic radiative lifetime of the molecule is unchanged by dilution (i.e. changes only occur to the nonradiative decay rate) then changes in the observed decay lifetime are directly proportional to changes in the fluorescence quantum efficiency. We find that the fluorescence decay lifetime of a pure film of F8BT is 1.1 ns which increases by ca. 60 % to 1.8 ns when it is diluted into a PMMA thin film (at a concentration of 2 % by mass). The decay lifetime of F8 is ca. 320 ps in a pure thin film which increases by around 6 % to 340 ps when diluted (also at 2 % by mass) into PMMA. This suggests that the fluorescence quantum efficiency of F8BT increases strongly when diluted into PMMA however the F8 quantum efficiency is much less sensitive to PMMA dilution.
10.1063/1.1407863
10.1021/ma035750i

Dates

Type	When
Created	18 years, 11 months ago (Sept. 20, 2006, 6:32 a.m.)
Deposited	1 year, 9 months ago (Nov. 20, 2023, 5:02 p.m.)
Indexed	1 year, 9 months ago (Nov. 20, 2023, 5:42 p.m.)
Issued	18 years, 11 months ago (Sept. 20, 2006)
Published	18 years, 11 months ago (Sept. 20, 2006)
Published Online	18 years, 11 months ago (Sept. 20, 2006)
Published Print	18 years, 10 months ago (Oct. 17, 2006)

Funders 0

None

BibTeX

@article{Cadby_2006, title={Suppression of Energy‐Transfer Between Conjugated Polymers in a Ternary Blend Identified Using Scanning Near‐Field Optical Microscopy}, volume={18}, ISSN={1521-4095}, url={http://dx.doi.org/10.1002/adma.200600114}, DOI={10.1002/adma.200600114}, number={20}, journal={Advanced Materials}, publisher={Wiley}, author={Cadby, A. and Dean, R. and Jones, R. A. L. and Lidzey, D. G.}, year={2006}, month=sep, pages={2713–2719} }

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