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Electrochemical determination of the ionization potential and electron affinity of poly(9,9-dioctylfluorene)
Abstract
We report cyclic voltammetry measurements for the blue electroluminescent conjugated polymer poly(9,9-dioctylfluorene). Both oxidation and reduction potentials are determined and thus estimates of both the ionization potential Ip and electron affinity Ea of the polymer are obtained for the same sample under the same experimental conditions. We estimate Ip=5.80 eV and Ea=2.12 eV. These results disagree with the common assumption that Ea is, to good approximation, given by the difference between Ip and the optical gap. Measurements on indium tin oxide/polyfluorene/calcium light emitting diode structures are consistent with the deductions from the electrochemical data.
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Cited by
Electron Transport Materials for Organic Light-Emitting Diodes
Kulkarni, A. P., Tonzola, C. J., Babel, A., & Jenekhe, S. A. (2004) · Chemistry of Materials · doi:10.1021/cm049473l · Cited by 1,624
Designing π-conjugated polymers for organic electronics
Guo, X., Baumgarten, M., & Müllen, K. (2013) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2013.09.005 · Cited by 836
Novel Electroluminescent Conjugated Polyelectrolytes Based on Polyfluorene
Huang, F., Wu, H., Wang, D., Yang, W., & Cao, Y. (2004) · Chemistry of Materials · doi:10.1021/cm034650o · Cited by 632
Synthesis and photovoltaic properties of polythiophene stars with porphyrin core
Liu, Y., Guo, X., Xiang, N., Zhao, B., Huang, H., Li, H., Shen, P., & Tan, S. (2010) · J. Mater. Chem. · doi:10.1039/b916935k · Cited by 54
Metadata
- Authors
- Janietz, S., Bradley, D. D. C., Grell, M., Giebeler, C., Inbasekaran, M., & Woo, E. P.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 1998-10-26
- Volume
- 73
- Issue
- 17
- Pages
- 2453-2455
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2094695040
- Cited by
- 674
- References
- 0
- FWCI
- 25.29
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Electrochemical determination of the ionization potential and electron affinity of poly(9,9-dioctylfluorene). https://app.cochat.ai/papers/10.1063/1.122479
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- Janietz, S., Bradley, D. D. C., Grell, M., Giebeler, C., Inbasekaran, M., & Woo, E. P. (1998). Electrochemical determination of the ionization potential and electron affinity of poly(9,9-dioctylfluorene). Applied Physics Letters. https://doi.org/10.1063/1.122479
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