A D-A copolymer of dithienosilole and a new acceptor unit of naphtho[2,3-c]thiophene-4,9-dione for efficient polymer solar cells

Chaohua Cui; Xi Fan; Maojie Zhang; Jing Zhang; Jie Min; Yongfang Li

doi:10.1039/c1cc14132e

A D-A copolymer of dithienosilole and a new acceptor unit of naphtho[2,3-c]thiophene-4,9-dione for efficient polymer solar cells

Chem Commun (Camb). 2011 Oct 28;47(40):11345-7. doi: 10.1039/c1cc14132e. Epub 2011 Sep 14.

Authors

Chaohua Cui¹, Xi Fan, Maojie Zhang, Jing Zhang, Jie Min, Yongfang Li

Affiliation

¹ Beijing National Laboratory for Molecular Sciences, Institution of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.

PMID: 21918754
DOI: 10.1039/c1cc14132e

Abstract

A strong electron-withdrawing unit, naphtho[2,3-c]thiophene-4,9-dione, was copolymerized with dithienosilole to get a D-A copolymer, PDTSNTDO, with a narrow bandgap and lower-lying HOMO level. The PCE of the PDTSNTDO-based device reached 5.21%, with a high open circuit voltage of 0.88 V.