Efficient polymer solar cells based on benzothiadiazole and alkylphenyl substituted benzodithiophene with a power conversion efficiency over 8%

Maojie Zhang; Yu Gu; Xia Guo; Feng Liu; Shaoqing Zhang; Lijun Huo; Thomas P Russell; Jianhui Hou

doi:10.1002/adma.201301494

Efficient polymer solar cells based on benzothiadiazole and alkylphenyl substituted benzodithiophene with a power conversion efficiency over 8%

Adv Mater. 2013 Sep 20;25(35):4944-9. doi: 10.1002/adma.201301494. Epub 2013 Jul 19.

Authors

Maojie Zhang¹, Yu Gu, Xia Guo, Feng Liu, Shaoqing Zhang, Lijun Huo, Thomas P Russell, Jianhui Hou

Affiliation

¹ State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.

PMID: 23868755
DOI: 10.1002/adma.201301494

Abstract

A new copolymer PBDTP-DTBT based on benzothiadiazole and alkylphenyl substituted benzodithiophene is synthesized and characterized. The correlation of the evolution of the morphology and photovoltaic performance is investigated. The power conversion efficiency of the polymer solar cells based on PBDTP-DTBT/PC71 BM (1:1.5, w/w) reaches up to 8.07%, under the irradiation of AM 1.5G, 100 mW/cm(2) .

Keywords: benzodithiophene; benzothiadiazole; morphology; polymer solar cells; power conversion efficiency.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.