光电子快报(英文版), 2013, 9 (4): 274, Published Online: Oct. 12, 2017   

Efficiency enhancement of polymer solar cells by postadditional annealing treatment

Author Affiliations
Key Laboratory of Photo-electronic Thin Film Devices and Technology of Tianjin, Key Laboratory of Opto-electronic Information Science and Technology for Ministry of Education, Institute of Photo-electronic Thin Film Devices and Technology, Nankai University, Tianjin 300071, China
Abstract
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.

YU Xuan, YU Xiao-ming, HU Zi-yang, ZHANG Jian-jun, ZHAO Gengshen, ZHAO Ying. Efficiency enhancement of polymer solar cells by postadditional annealing treatment[J]. 光电子快报(英文版), 2013, 9(4): 274.

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