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Graphene Oxide Shells on Plasmonic Nanostructures Lead to High-Performance Photovoltaics: A Model Study Based on Dye-Sensitized Solar Cells

Title
Graphene Oxide Shells on Plasmonic Nanostructures Lead to High-Performance Photovoltaics: A Model Study Based on Dye-Sensitized Solar Cells
Authors
Jang Y.H.Rani A.Quan L.N.Adinolfi V.Kanjanaboos P.Ouellette O.Son T.Jang Y.J.Chung K.Kwon H.Kim D.Kim D.H.Sargent E.H.
Ewha Authors
김동하Adila Rani
SCOPUS Author ID
김동하scopus; Adila Raniscopus
Issue Date
2017
Journal Title
ACS Energy Letters
ISSN
2380-8195JCR Link
Citation
ACS Energy Letters vol. 2, no. 1, pp. 117 - 123
Publisher
American Chemical Society
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
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. © 2016 American Chemical Society.
DOI
10.1021/acsenergylett.6b00612
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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