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Yang Dong, Xiaowen Hu, Chunhui Duan, Peng Liu, Shengjian Liu, Liuyuan Lan, Dongcheng Chen, Lei Ying, Shijian Su, Xiong Gong, Fei Huang and Yong Cao A Series of New Medium-Bandgap Conjugated Polymers Based on Naphtho[1,2-c:5,6-c]bis(2-octyl-[1,2,3]triazole) for High-Performance Polymer Solar Cells Advanced Materials 25

Article first published online: 31 MAY 2013 | DOI: 10.1002/adma.201301547

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A series of novel conjugated copolymers based on naphtho[1,2-c:5,6-c]bis(2-octyl-[1,2,3]triazole) (TZNT) are synthesized. These copolymers exhibit medium bandgaps of ≈1.9 eV. One of them demonstrates a high performance of up to 6.10% power conversion efficiency in a bulk-heterojunction (BHJ) solar-cell device. The performance can be further enhanced to 7.11% when applied in an inverted device architecture, using PF3N-OX as an interfacial modifier.

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