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Exciton diffusion lengths of organic semiconductor thin films measured by spectrally resolved photoluminescence quenching
Abstract
We demonstrate spectrally resolved photoluminescence quenching as a means to determine the exciton diffusion length of several archetype organic semiconductors used in thin film devices. We show that aggregation and crystal orientation influence the anisotropy of the diffusion length for vacuum-deposited polycrystalline films. The measurement of the singlet diffusion lengths is found to be in agreement with diffusion by Förster transfer, whereas triplet diffusion occurs primarily via Dexter transfer.
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Cites
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Self-citationMolecular Fluorescence and Energy Transfer Near Interfaces
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Cited by
Small molecule semiconductors for high-efficiency organic photovoltaics
Lin, Y., Li, Y., & Zhan, X. (2012) · Chemical Society Reviews · doi:10.1039/c2cs15313k · Cited by 1,751
Exciton diffusion in organic semiconductors
Mikhnenko, O. V., Blom, P. W. M., & Nguyen, T.-Q. (2015) · Energy & Environmental Science · doi:10.1039/c5ee00925a · Cited by 997
Molecular Semiconductors in Organic Photovoltaic Cells
Hains, A. W., Liang, Z., Woodhouse, M. A., & Gregg, B. A. (2010) · Chemical Reviews · doi:10.1021/cr9002984 · Cited by 935
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Lin, Y., & Zhan, X. (2014) · Materials Horizons · doi:10.1039/c4mh00042k · Cited by 745
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Metadata
- Authors
- Lunt, R. R., Giebink, N. C., Belak, A. A., Benziger, J. B., & Forrest, S. R.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 2009-03-01
- Volume
- 105
- Issue
- 5
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W1982391368
- Cited by
- 473
- References
- 23
- FWCI
- 24.82
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lunt, R. R., Giebink, N. C., Belak, A. A., Benziger, J. B., & Forrest, S. R. (2009). Exciton diffusion lengths of organic semiconductor thin films measured by spectrally resolved photoluminescence quenching. Journal of Applied Physics. https://doi.org/10.1063/1.3079797
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