Development of small-molecule materials for high-performance organic solar cells |
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Authors: | Haijun Fan Xiaozhang Zhu |
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Affiliation: | 1.Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Organic Solids; Institute of Chemistry,Chinese Academy of Sciences,Beijing,China |
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Abstract: | With the rapid development in recent years, small-molecule organic solar cell is challenging the dominance of its counterpart, polymer solar cell. The top power conversion efficiencies of both single and tandem solar cells based on small molecules have surpassed 9%. In this mini review, achievements of small molecules with impressive photovoltaic performance especially reported in the last two years were highlighted. The relationship between molecular structure and device performance was analyzed, which draws some rules for rational molecular design. Five series of p- and n-type small molecules were selected based on the consideration of their competitiveness of power conversion efficiencies. |
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