Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11024390 | Dyes and Pigments | 2019 | 33 Pages |
Abstract
The thieno[3,4-c]pyrrole-4,6-dione (TPD) was applied as an acceptor to insert or replace one ring in the Ï-linker of the cyclic thiourea triphenylamine dye AZ6. Their light harvest abilities were investigated by UV-vis spectra both in the solution and on the films. The results show that a much higher light absorption abilities have been obtained by the molecular modification. The photovoltaic properties in DSSCs were also evaluated by J-V curves and IPCE measurements. The low photovoltaic conversion efficiencies (PCE) (ST3: 2.29% and ST1: 2.42%) were observed. The improvement PCE of ST2 (3.23%) were realized by further modification of ST1 and verified that the Ï-Ï stacking is the main reason to decline the PCE. The theoretical calculation and co-sensitized method were all used to clarify the relationship of molecular structure and properties.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Qi Wang, Qiang Weng, Ran Chen, Qi An, Shengbo Zhu, Zhongwei An, Xinbing Chen, Pei Chen,