High-Performance Polymer Tandem Solar Cells Employing a New n-Type Conjugated Polymer as an Interconnecting Layer

Kai Zhang; Ke Gao; Ruoxi Xia; Zhihong Wu; Chen Sun; Jiamin Cao; Liu Qian; Weiqi Li; Shiyuan Liu; Fei Huang; Xiaobin Peng; Liming Ding; Hin-Lap Yip; Yong Cao

doi:10.1002/adma.201506270

High-Performance Polymer Tandem Solar Cells Employing a New n-Type Conjugated Polymer as an Interconnecting Layer

Adv Mater. 2016 Jun;28(24):4817-23. doi: 10.1002/adma.201506270. Epub 2016 Apr 13.

Authors

Kai Zhang¹, Ke Gao¹, Ruoxi Xia¹, Zhihong Wu¹, Chen Sun¹, Jiamin Cao², Liu Qian², Weiqi Li³, Shiyuan Liu^{3

4}, Fei Huang¹, Xiaobin Peng¹, Liming Ding², Hin-Lap Yip¹, Yong Cao¹

Affiliations

¹ Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China.
² National Center for Nanoscience and Technology, Beijing, 100190, P. R. China.
³ State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China.
⁴ Wuhan Eoptics Technology Co. Ltd., Wuhan, Hubei, 430075, P. R. China.

PMID: 27071943
DOI: 10.1002/adma.201506270

Abstract

A new n-type polymer, PF3N-2TNDI, with high electron mobility, is developed as efficient cathode interfacial material and interconnecting layer (ICL) for constructing high-performance tandem organic solar cells. Tandem cells employing the ICL with structure of PF3N-2TNDI/Ag/

Pedot: PSS achieve a high power conversion efficiency (PCE) of 11.35%. Moreover, flexible tandem cells with PCE over 10% are also demonstrated.

Keywords: flexible devices; interconnecting layers; optical modeling; organic tandem solar cells; water/alcohol-soluble polymers.