Small Band Gap Polymers Synthesized via a Modified Nitration of 4,7-Dibromo-2,1,3-benzothiadiazole
Journal article, 2010
The nitration of 4,7-dibromo-2,1,3-benzothiadiazole was modified by using CF3SO3H and HNO3 as the nitrating agent, and the related yield was improved greatly. On the basis of this improvement, two new small band gap polymers, P1TPQ and P3TPQ, were developed. Bulk heterojunction solar cells based on P3TPO and [6,6]-phenyl-C-71-butyric acid methyl ester exhibit interesting results with a power conversion efficiency of 21% and photoresponse up to 1.1 mu m
heterojunction solar-cells
efficiency
photovoltaic cells
conjugated polymer
energy
performance
design
Author
Ergang Wang
Chalmers, Chemical and Biological Engineering, Polymer Technology
Lintao Hou
Linköping University
Z. Q. Wang
Linköping University
Stefan Hellström
Chalmers, Chemical and Biological Engineering, Polymer Technology
Wendimagegn Mammo
Chalmers, Chemical and Biological Engineering, Polymer Technology
Addis Ababa University
Fengling Zhang
Linköping University
Olle Inganäs
Linköping University
Mats Andersson
Chalmers, Chemical and Biological Engineering, Polymer Technology
Organic Letters
1523-7060 (ISSN) 1523-7052 (eISSN)
Vol. 12 20 4470-4473Subject Categories
Chemical Sciences
DOI
10.1021/ol1020724