193408-13-8Relevant articles and documents
Panchromatic cross-conjugated π-bridge NIR dyes for DSCs
Zhang, Yanbing,Cheema, Hammad,London, Alexander E.,Morales, Amber,Azoulay, Jason D.,Delcamp, Jared H.
, p. 2438 - 2443 (2018)
Four organic sensitizers incorporating a cross-conjugated cyclopenta[2,1-b:3,4-b′]dithiophene (CPDT) π-bridge have been synthesized. As a result of molecular engineering, broad high energy bands and red shifted absorption maxima and onset is observed relative to a benchmark analogue (C218) using a non-cross-conjugated CPDT π-bridge. The use of a cross-conjugated bridge allows a new strategy for tuning dye energetics and introduction of increased absorption uniformity by adding additional high-energy absorption bands. These dyes show solar-to-electric conversion up to 800 nm with one derivative exceeding the performance of C218 under identical conditions.
