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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|
Li Na Quan
Yu Jin Jang
Dong Ha Kim
Edward H. Sargent
Ewha Womans University
University of Toronto
Korea Institute of Science and Technology
|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.|
|Appears in Collections:||Scopus 2016-2017|
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