Rare solvent annealing effective benzo(1,2-b:4,5-b')dithiophene-based low band-gap polymer for bulk heterojunction organic photovoltaics

Hung-Yang Chen; Jhao-Lin Wu; Chin-Ti Chen; Chao-Tsen Chen

doi:10.1039/c1cc16619k

Rare solvent annealing effective benzo(1,2-b:4,5-b')dithiophene-based low band-gap polymer for bulk heterojunction organic photovoltaics

Chem Commun (Camb). 2012 Jan 25;48(7):1012-4. doi: 10.1039/c1cc16619k. Epub 2011 Dec 6.

Authors

Hung-Yang Chen¹, Jhao-Lin Wu, Chin-Ti Chen, Chao-Tsen Chen

Affiliation

¹ Institute of Chemistry, Academia Sinica, Taipei, Taiwan 11529, Republic of China.

PMID: 22146262
DOI: 10.1039/c1cc16619k

Abstract

A newly synthesized benzo(1,2-b:4,5-b')dithiophene-based low band-gap copolymer pBCN is amenable to solvent annealing in the fabrication of organic photovoltaics, of which power conversion efficiency is greatly improved to 4.2% with PC(61)BM or 4.9% with PC(71)BM.