Published in
Royal Society of Chemistry, Chemical Communications, 17(47), p. 4908
DOI: 10.1039/c1cc11053e
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An isoindigo-based low band gap polymer for efficient polymer solar cells with high photo-voltage
Journal article published in 2011 by
Ergang Wang,
Zaifei F. Ma,
Patrik Henriksson,
Zhen Zhang,
Olle Inganas,
Fengling L. Zhang 
,
Mats R. Andersson
,
Mats R. Andersson
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Abstract
A new low band gap polymer (E-g = 1.6 eV) with alternating thiophene and isoindigo units was synthesized and characterized. A PCE of 3.0% and high open-circuit voltage of 0.89 V were realized in polymer solar cells, which demonstrated the promise of isoindigo as an electron deficient unit in the design of donor-acceptor conjugated polymers for polymer solar cells.