Photovoltaic Performance of an Ultrasmall Band Gap Polymer
Organic Letters2009Vol. 11(4), pp. 903–906
Citations Over TimeTop 1% of 2009 papers
Arjan P. Zoombelt, M. Fonrodona, Martijn M. Wienk, Alexander B. Sieval, Jan C. Hummelen, René A. J. Janssen
Abstract
A conjugated polymer (PBTTQ) that consists of alternating electron-rich bithiophene and electron-deficient thiadiazoloquinoxaline units was synthesized via Yamamoto polymerization with Ni(cod)(2) and provides a band gap of 0.94 eV. This represents one of the smallest band gaps obtained for a soluble conjugated polymer. When applied in a bulk heterojunction solar cell together with [84]PCBM as the electron acceptor, the polymer affords a response up to 1.3 microm.
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