Gold nanoparticle-decorated graphene oxides for plasmonic-enhanced polymer photovoltaic devices

Ming Kai Chuang, Shih Wei Lin, Fang-Chung Chen*, Chih Wei Chu, Chain-Shu Hsu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

88 Scopus citations

Abstract

In this work, gold nanoparticle/graphene oxide (AuNP/GO) nanocomposites are synthesized and used as anodic buffer layers in organic photovoltaic devices (OPVs). The application of thiol-terminated polyethylene glycol as a capping agent prevents the aggregation of AuNPs on the GO surface and further improves the solubility and stability of these nanomaterials in solutions. When AuNP/GO nanomaterials served as the buffer layers, they introduced localized surface plasmon resonance (LSPR) in the OPVs, leading to noticeable enhancements in the photocurrent and the efficiencies of the OPVs. We attribute the primary origin of the improvement in device performance to local field enhancement induced by the LSPR. We anticipate that this study might open up new avenues for constructing plasmon-enhancing layers on the nanoscale to improve the performance of solar cells.

Original languageEnglish
Pages (from-to)1573-1579
Number of pages7
JournalNanoscale
Volume6
Issue number3
DOIs
StatePublished - 7 Feb 2014

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