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Simultaneous enhancement of charge transport and exciton diffusion in poly(p-phenylene vinylene) derivatives
Open accessAbstract
Time-resolved luminescence spectroscopy has been used to investigate exciton diffusion in thin films of poly($p$-phenylene vinylene) (PPV)--based derivatives. Due to chemical modifications the PPV derivatives differ by three orders of magnitude in charge carrier mobility as a result of a reduced energetic disorder. From the photoluminescence decay curves of PPV/fullerene heterostructures, the exciton diffusion coefficient was found to increase by one order of magnitude with decreasing disorder. This increase in the diffusion coefficient is compensated by a decrease of the exciton lifetime, leading to an exciton diffusion length of $5--6\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$ for the various PPV derivatives.
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Markov, D. E., Amsterdam, E., Blom, P. W. M., Sieval, A. B., & Hummelen, J. C. (2005) · The Journal of Physical Chemistry A · doi:10.1021/jp0509663 · Cited by 432
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Cited by
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Mikhnenko, O. V., Blom, P. W. M., & Nguyen, T.-Q. (2015) · Energy & Environmental Science · doi:10.1039/c5ee00925a · Cited by 997
Self-citationObservation of long-range exciton diffusion in highly ordered organic semiconductors
Najafov, H., Lee, B., Zhou, Q., Feldman, L. C., & Podzorov, V. (2010) · Nature Materials · doi:10.1038/nmat2872 · Cited by 532
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Gan, Q., Bartoli, F. J., & Kafafi, Z. H. (2013) · Advanced Materials · doi:10.1002/adma.201203323 · Cited by 473
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Scully, S. R., & McGehee, M. D. (2006) · Journal of Applied Physics · doi:10.1063/1.2226687 · Cited by 323
Metadata
- Authors
- Markov, D. E., Tanase, C., Blom, P. W. M., & Wildeman, J.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2005-07-21
- Volume
- 72
- Issue
- 4
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W2087087177
- Cited by
- 203
- References
- 1
- FWCI
- 9.22
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Markov, D. E., Tanase, C., Blom, P. W. M., & Wildeman, J. (2005). Simultaneous enhancement of charge transport and exciton diffusion in poly(p-phenylene vinylene) derivatives. Physical Review B. https://doi.org/10.1103/physrevb.72.045217
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