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A Polybenzo[1,2‐ b :4,5‐ b ′]dithiophene Derivative with Deep HOMO Level and Its Application in High‐Performance Polymer Solar Cells
Author(s) -
Huo Lijun,
Hou Jianhui,
Zhang Shaoqing,
Chen HsiangYu,
Yang Yang
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200906934
Subject(s) - polymer , energy conversion efficiency , materials science , derivative (finance) , open circuit voltage , quantum efficiency , solar cell , polymer chemistry , optoelectronics , voltage , physics , composite material , quantum mechanics , financial economics , economics
Sun catcher : The new benzo[1,2‐ b :4,5‐ b ′]dithiophene‐containing polymer PBDTTBT exhibits a power conversion efficiency of up to 5.66 %. The high open‐circuit voltage (0.92 V) originates from the low HOMO level of the polymer and the high internal and external quantum efficiencies over a wide spectral range. PBDTTBT is a promising donor material for application in polymer solar cells.