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Title: Graphene Oxide Shells on Plasmonic Nanostructures Lead to High-Performance Photovoltaics: A Model Study Based on Dye-Sensitized Solar Cells
Authors: Yoon Hee Jang
Adila Rani
Li Na Quan
Valerio Adinolfi
Pongsakorn Kanjanaboos
Olivier Ouellette
Taehwang Son
Yu Jin Jang
Kyungwha Chung
Hannah Kwon
Donghyun Kim
Dong Ha Kim
Edward H. Sargent
Ewha Womans University
University of Toronto
Yonsei University
Korea Institute of Science and Technology
Mahidol University
Keywords: Chemistry;Energy
Issue Date: 13-Jan-2017
Citation: ACS Energy Letters. Vol.2, No.1 (2017), 117-123
Abstract: © 2016 American Chemical Society. The incorporation of plasmonic nanoparticles (NPs) into photovoltaic devices can increase light absorption and in turn improve solar cell performance. The graphene oxide-encapsulated gold NPs (Au@GO NPs) are designed and incorporated into photoanodes to demonstrate plasmonic dye-sensitized solar cells. The coupling between GO and the Au NPs has the beneficial effect of extending solar spectral utilization in the long-wavelength portion of the visible spectrum. In addition, GO encapsulation reduces charge recombination on the surface of the NPs and facilitates improved charge transport. As a result, champion devices with plasmonic photoanodes containing Au@GO NPs deliver a power conversion efficiency that reaches 9.1%. This corresponds to an enhancement in photocurrent and power conversion efficiency of 19 and 17%, respectively, compared to control devices.
ISSN: 23808195
Appears in Collections:Scopus 2016-2017

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