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Efficiency enhancement of polymer solar cells by post-additional annealing treatment 被引量:3

Efficiency enhancement of polymer solar cells by post-additional annealing treatment
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摘要 We adopt the post-additional thermal annealing (PATA) process to optimize the performance of the polymer solar cells (PSCs) with an active layer composed of a blend of regioregular poly (3-hexythiophene) (RR-P3HT) and fullerenes. It is found that compared with general annealing process, the crystallinity of RR-P3HT by PATA is enhanced, and the absorption peak is raised obviously at ~500 nm after PATA. With the optimized annealing conditions, the device shows an enhancement of 31% in short circuit current density, 5% in open circuit voltage (Voc), and 11% in the power conversion efficiency (PCE) compared with that of the general annealing device. We adopt the post-additional thermal annealing (PATA) process to optimize the performance of the polymer solar cells (PSCs) with an active layer composed of a blend of regioregular poly (3-hexythiophene) (RR-P3HT) and fullerenes. It is found that compared with general annealing process, the crystallinity of RR-P3HT by PATA is enhanced, and the absorption peak is raised obviously at -500 nm after PATA. With the optimized annealing conditions, the device shows an enhancement of 31% in short circuit current density, 5% in open circuit voltage (Voc), and 11% in the power con- version efficiency (PCE) compared with that of the general annealing device.
出处 《Optoelectronics Letters》 EI 2013年第4期274-277,共4页 光电子快报(英文版)
基金 the National Basic Research Program of China (Nos.2011CBA00705, 2011CBA00706 and 2011CBA00707) the Major Science and Technology Support Project of Tianjin (No.11TXSYGX22100)
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