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Self-Organized Discotic Liquid Crystals for High-Efficiency Organic Photovoltaics
Open accessAbstract
Self-organization of liquid crystalline and crystalline-conjugated materials has been used to create, directly from solution, thin films with structures optimized for use in photodiodes. The discotic liquid crystal hexa-peri-hexabenzocoronene was used in combination with a perylene dye to produce thin films with vertically segregated perylene and hexabenzocoronene, with large interfacial surface area. When incorporated into diode structures, these films show photovoltaic response with external quantum efficiencies of more than 34 percent near 490 nanometers. These efficiencies result from efficient photoinduced charge transfer between the hexabenzocoronene and perylene, as well as from effective transport of charges through vertically segregated perylene and hexabenzocoronene π systems. This development demonstrates that complex structures can be engineered from novel materials by means of simple solution-processing steps and may enable inexpensive, high-performance, thin-film photovoltaic technology.
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Cited by
Conjugated Polymer-Based Organic Solar Cells
Günes, S., Neugebauer, H., & Sariciftci, N. S. (2007) · Chemical Reviews · doi:10.1021/cr050149z · Cited by 6,279
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
Matsuo, Y., Sato, Y., Niinomi, T., Soga, I., Tanaka, H., & Nakamura, E. (2009) · Journal of the American Chemical Society · doi:10.1021/ja9048702 · Cited by 488
Moliton, A., & Hiorns, R. C. (2004) · Polymer International · doi:10.1002/pi.1587 · Cited by 409
Metadata
- Authors
- Schmidt-Mende, L., Fechtenkötter, A., Müllen, K., Moons, E., Friend, R. H., & MacKenzie, J. D.
- Venue
- Science
- Published
- 2001-08-10
- Volume
- 293
- Issue
- 5532
- Pages
- 1119-1122
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2028772401
- Cited by
- 2,378
- References
- 0
- FWCI
- 87.82
- Type
- journal article
- Language
- en
- Open access
- green
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