Graphene-based transparent flexible electrodes for polymer solar cells

Ming He, Jaehan Jung, Feng Qiu, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

112 Scopus citations

Abstract

Conjugated polymer-based bulk heterojunction (BHJ) solar cells are widely recognized as a promising alternative to their inorganic counterparts for achieving low-cost, roll-to-roll production of large-area flexible lightweight photovoltaic devices. Current research in designing new polymers and optimizing device architectures has been devoted to improving the film morphology, photovoltaic performance and stability of polymer BHJ solar cells. Conjugated block copolymers (BCPs), including rod-coil and rod-rod BCPs, exhibit excellent flexibility for tuning the bandgap of semiconductor polymers, regulating the molecular organization of donor (and/or acceptor) units, templating the film morphology of active layers, and achieving well-defined BHJ architectures. In this Feature Article, we summarize the recent developments over the past five years in the synthesis, self-assembly, and utilization of conjugated rod-coil and all-conjugated rod-rod BCPs for solar energy conversion; highlight the correlation between the microphase-separated morphology and photovoltaic properties in conjugated BCPs; and finally provide an outlook on the future of BCP-based photovoltaic devices.

Original languageEnglish
Pages (from-to)24254-24264
Number of pages11
JournalJournal of Materials Chemistry
Volume22
Issue number46
DOIs
StatePublished - 14 Dec 2012

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