Solution-processable crystalline platinum-acetylide oligomers with broadband absorption for photovoltaic cells

X Zhao, C Piliego, BS Kim, DA Poulsen, B Ma…

Index: Zhao, Xiaoyong; Piliego, Claudia; Kim, Bongsoo; Poulsen, Daniel A.; Ma, Biwu; Unruh, David A.; Frechet, Jean M. J. Chemistry of Materials, 2010 , vol. 22, # 7 p. 2325 - 2332

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Citation Number: 71

Abstract

A series of crystalline platinum-acetylide oligomers featuring intramolecular-charge-transfer (ICT) cores and oligothiophene alkynyl ligands exhibit broad light absorption, a strong tendency to self-assemble into crystalline domains, and good hole mobility. Solution- processed bulk heterojuction devices using these oligomers with fullerenes show bicontinuous morphology providing power conversion efficiencies of up to 3%.