Efficient light harvesting in multiple-device stacked structure for polymer solar cells
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- Vishal Shrotriya
- University of California Los Angeles Department of Materials Science and Engineering, , Los Angeles, California 90095
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- Elbert Hsing-En Wu
- University of California Los Angeles Department of Materials Science and Engineering, , Los Angeles, California 90095
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- Gang Li
- University of California Los Angeles Department of Materials Science and Engineering, , Los Angeles, California 90095
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- Yan Yao
- University of California Los Angeles Department of Materials Science and Engineering, , Los Angeles, California 90095
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- Yang Yang
- University of California Los Angeles Department of Materials Science and Engineering, , Los Angeles, California 90095
書誌事項
- 公開日
- 2006-02-06
- DOI
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- 10.1063/1.2172741
- 公開者
- AIP Publishing
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説明
<jats:p>We demonstrate a multiple-device stacked structure of polymer solar cells for efficient light harvesting. Two polymer photovoltaic cells are stacked together and connected in series or in parallel to achieve a tandem structure. In this two-cell structure, a multilayer semitransparent electrode, made of lithium fluoride (LiF)/aluminum (Al)/gold (Au), is used as the top contact in the bottom cell to efficiently transmit the unabsorbed photons to the upper cell. Maximum transparency of up to 80% is achieved for the semitransparent cathode. Upon stacking, the open-circuit voltage and the short-circuit current are almost doubled compared to a single cell.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 88 (6), 064104-, 2006-02-06
AIP Publishing