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Photovoltaic measurement of the built-in potential in organic light emitting diodes and photodiodes
Abstract
We measure the voltage at which the current under illumination in poly[2-methoxy, 5-(2-ethylhexoxy)-1,4-phenylene vinylene] based light emitting diodes is equal to the dark current. At low temperatures, this voltage, which we term the “compensation” voltage, is found to be equal to the built-in potential, as measured with electroabsorption on the same diode. Diffusion of thermally injected charges at room temperature, however, shifts the compensation voltage to lower values. A model explaining this behavior is developed and its implications for the operation of organic light emitting diodes and photovoltaic cells are briefly discussed.
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Cited by
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Günes, S., Neugebauer, H., & Sariciftci, N. S. (2007) · Chemical Reviews · doi:10.1021/cr050149z · Cited by 6,279
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Luther, J. M., Law, M., Beard, M. C., Song, Q., Reese, M. O., Ellingson, R. J., & Nozik, A. J. (2008) · Nano Letters · doi:10.1021/nl802476m · Cited by 928
Electrical characteristics and efficiency of single-layer organic light-emitting diodes
Malliaras, G. G., Salem, J. R., Brock, P. J., & Scott, C. (1998) · Physical Review B · doi:10.1103/physrevb.58.r13411 · Cited by 663
Self-citationBrown, T. M., Kim, J. S., Friend, R. H., Cacialli, F., Daik, R., & Feast, W. J. (1999) · Applied Physics Letters · doi:10.1063/1.124789 · Cited by 517
Tang, J., Brzozowski, L., Barkhouse, D. A. R., Wang, X., Debnath, R., Wolowiec, R., Palmiano, E., Levina, L., Pattantyus-Abraham, A. G., Jamakosmanovic, D., et al. (2010) · ACS Nano · doi:10.1021/nn901564q · Cited by 392
Metadata
- Authors
- Malliaras, G. G., Salem, J. R., Brock, P. J., & Scott, J. C.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 1998-08-01
- Volume
- 84
- Issue
- 3
- Pages
- 1583-1587
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W2004658512
- Cited by
- 215
- References
- 0
- FWCI
- 14.10
- Type
- journal article
- Language
- en
- Open access
- closed
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- Malliaras, G. G., Salem, J. R., Brock, P. J., & Scott, J. C. (1998). Photovoltaic measurement of the built-in potential in organic light emitting diodes and photodiodes. Journal of Applied Physics. https://doi.org/10.1063/1.368227
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