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Title: Panchromatic cross-conjugated π-bridge NIR dyes for DSCs
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.  more » « less
Award ID(s):
1632825
NSF-PAR ID:
10057221
Author(s) / Creator(s):
; ; ; ; ;
Date Published:
Journal Name:
Physical Chemistry Chemical Physics
Volume:
20
Issue:
4
ISSN:
1463-9076
Page Range / eLocation ID:
2438 to 2443
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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