Solution-Processed Organic Photovoltaic Cells with Anthracene Derivatives
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SCOPUS
- Title
- Solution-Processed Organic Photovoltaic Cells with Anthracene Derivatives
- Authors
- Chung, DS; Park, JW; Yun, WM; Cha, H; Kim, YH; Kwon, SK; Park, CE
- Date Issued
- 2010-01
- Publisher
- WILEY-V C H VERLAG GMBH
- Abstract
- Solution-processed small-molecule bulk heterojunction photovoltaic cells are fabricated by using [6,6]-phenyl-C-61-butyric acid methyl ester (PCBM) as electron acceptor and triisopropylsilylethynyl anthracene (TIPSAnt) derivatives substituted with naphthalene (TIPSAntNa) and bithiophene (TIPSAntBT) as electron donors. In contrast to TIPS-pentacene, the TIPSAnt derivatives are not susceptible to Die Is-Alder reactions with PCBM when processed in solution, as confirmed by UV/Vis measurements. Photoluminescence quenching measurements show exciton diffusion lengths of 5 and 3 nm for TIPSAntBT and TIP-SAntNa, respectively. Blending TIPSAntBT and TIPSAntNa with PCBM (1:1, 1:2, 1:3, and 1:4 weight ratios) produces films that possess adequate hole and electron mobilities. The morphological changes that result from varying the blending ratio range from obvious phase-segregated crystalline domains at a 1:1 ratio to homogeneous, nearly amorphous phases at a 1:4 ratio. Bulk heterojunction solar cells prepared by using a TIPSAntBT:PCBM blend reach power conversion efficiencies as high as 1.4%.
- Keywords
- anthracenes; photophysics; semiconductors; solar cells; thin films; HETEROJUNCTION SOLAR-CELLS; EXCITON DIFFUSION LENGTH; FIELD-EFFECT TRANSISTORS; FUNCTIONALIZED ACENES; EFFICIENCY; TRANSPORT; SEMICONDUCTORS; PHOTOCURRENT; PERFORMANCE; ABSORPTION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/25758
- DOI
- 10.1002/CSSC.201000037
- ISSN
- 1864-5631
- Article Type
- Article
- Citation
- CHEMSUSCHEM, vol. 3, no. 6, page. 742 - 748, 2010-01
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- There are no files associated with this item.
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