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Tuning the Spectroscopic, Electrochemical, and Photovoltaic Properties of Triaryl Amine Based Sensitizers through Ring-Fused Thiophene Bridges.
MedLine Citation:
PMID:  22287195     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The ring-fused thiophene derivatives benzo[c]thiophene and its precursor bicyclo[2.2.2]octadiene (BCOD) have been introduced as π-conjugated spacers for organic push-pull sensitizers with dihexyloxy-substituted triphenylamine as donor and cyanoacrylic acid as acceptor (OL1-OL6). The effects of the fused ring on the spectroscopic and electrochemical properties of these sensitizers and their photovoltaic performance in dye-sensitized solar cells have been evaluated. Introduction of a binary benzo[c]thiophene and ethylenedioxy thiophene as π bridge caused a significant red shift of the characteristic intramolecular charge-transfer band to 642 nm. It is found that the sensitizer OL3, which contains one benzo[c]thiophene unit as π linker, gives the highest overall conversion efficiency of 5.03 % among all these dyes.
Authors:
Quan Liu; Quan-You Feng; Hiroko Yamada; Zhong-Sheng Wang; Noboru Ono; Xiao-Zeng You; Zhen Shen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-27
Journal Detail:
Title:  Chemistry, an Asian journal     Volume:  -     ISSN:  1861-471X     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101294643     Medline TA:  Chem Asian J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Affiliation:
State Key Laboratory of Coordination Chemistry, Nanjing University, 210093, Nanjing, Jiangsu (P.R. China), Fax: (+86) 25-83314502.
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