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Direct Measurement of Conjugated Polymer Electronic Excitation Energies Using Metal/Polymer/Metal Structures
Abstract
We report electroabsorption measurements of built-in electric fields and internal photoemission measurements of Schottky barriers to determine the charge transfer and single-particle energy gaps of the conjugated polymer poly[2-methoxy, 5-(2\ensuremath{'}-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV). For MEH-PPV, with an exciton absorption peak of 2.25 eV, or results yield a single-particle energy gap of 2.45 eV and a charge transfer energy gap of at least 2.35 eV. Therefore the exciton binding energy is 0.2 eV and the bipolaron binding energy is less than 0.1 eV.
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Citations
Cited by
Greenham, N. C., Peng, X., & Alivisatos, A. P. (1996) · Physical Review B · doi:10.1103/physrevb.54.17628 · Cited by 1,512
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Brabec, C. J. (2004) · Solar Energy Materials and Solar Cells · doi:10.1016/j.solmat.2004.02.030 · Cited by 1,152
Ultrafast Long-Range Charge Separation in Organic Semiconductor Photovoltaic Diodes
Gélinas, S., Rao, A., Kumar, A., Smith, S. L., Chin, A. W., Clark, J., van der Poll, T. S., Bazan, G. C., & Friend, R. H. (2014) · Science · doi:10.1126/science.1246249 · Cited by 936
Efficient Hybrid Solar Cells from Zinc Oxide Nanoparticles and a Conjugated Polymer
Beek, W. J. E., Wienk, M. M., & Janssen, R. A. J. (2004) · Advanced Materials · doi:10.1002/adma.200306659 · Cited by 932
Molecular-scale interface engineering for polymer light-emitting diodes
Ho, P. K. H., Kim, J.-S., Burroughes, J. H., Becker, H., Li, S. F. Y., Brown, T. M., Cacialli, F., & Friend, R. H. (2000) · Nature · doi:10.1038/35006610 · Cited by 768
Metadata
- Authors
- Campbell, I. H., Hagler, T. W., Smith, D. L., & Ferraris, J. P.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1996-03-11
- Volume
- 76
- Issue
- 11
- Pages
- 1900-1903
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2030576312
- Cited by
- 460
- References
- 0
- FWCI
- 38.83
- Type
- journal article
- Language
- en
- Open access
- closed
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- Campbell, I. H., Hagler, T. W., Smith, D. L., & Ferraris, J. P. (1996). Direct Measurement of Conjugated Polymer Electronic Excitation Energies Using Metal/Polymer/Metal Structures. Physical Review Letters. https://doi.org/10.1103/physrevlett.76.1900
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
