Side chain engineering of fused aromatic thienopyrazine based low band-gap polymers for enhanced charge carrier mobility

Rajib Mondal, Sangwon Ko, Eric Verploegen, Hector A. Becerril, Michael F. Toney, Zhenan Bao

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

A strategic side-chain engineering approach leads to the two orders of magnitude enhancement of charge carrier mobility in phenanthrene based fused aromatic thienopyrazine polymers. Hole carrier mobility up to 0.012 cm 2/Vs can be obtained in thin film transistor devices. Polymers were also utilized to fabricate bulk heterojunction photovoltaic devices and the maximum PCE obtained in these OPV's was 1.15%. Most importantly, performances of the devices were correlated with thin morphological analysis performed by atomic force microscopy and grazing incidence X-ray scattering. © 2011 The Royal Society of Chemistry.
Original languageEnglish (US)
Pages (from-to)1537-1543
Number of pages7
JournalJ. Mater. Chem.
Volume21
Issue number5
DOIs
StatePublished - 2011
Externally publishedYes

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