Solution-Processed Organic Solar Cells Based on Dialkylthiol-Substituted Benzodithiophene Unit with Efficiency near 10%

Kan B; Zhang Q; Li MM; Wan XJ; Ni W; Long GK; Wang YC; Yang X; Feng HR; Chen YS

Journal of the American Chemical Society, Vol.136, No.44, 15529-15532, 2014

Kan B, Zhang Q, Li MM, Wan XJ, Ni W, Long GK, Wang YC, Yang X, Feng HR, Chen YS

A small molecule named DR3TSBDT with dialkylthiol-substituted benzo[1,2-b:4,5-b']dithiophene (BDT) as the central unit was designed and synthesized for solution-processed bulk-heterojunction solar cells. A notable power conversion efficiency of 9.95% (certified 9.938%) has been achieved under AM 1.5G irradiation (100 mW cm(-2)), with an average PCE of 9.60% based on 50 devices.