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Graphene Oxide Shells on Plasmonic Nanostructures Lead to High-Performance Photovoltaics: A Model Study Based on Dye-Sensitized Solar Cells
- Graphene Oxide Shells on Plasmonic Nanostructures Lead to High-Performance Photovoltaics: A Model Study Based on Dye-Sensitized Solar Cells
- Jang, Yoon Hee; Rani, Adila; Quan, Li Na; Adinolfi, Valerio; Kanjanaboos, Pongsakorn; Ouellette, Olivier; Son, Taehwang; Jang, Yu Jin; Chung, Kyungwha; Kwon, Hannah; Kim, Donghyun; Kim, Dong Ha; Sargent, Edward H.
- Ewha Authors
- 김동하; Adila Rani
- SCOPUS Author ID
- 김동하; Adila Rani
- Issue Date
- Journal Title
- ACS ENERGY LETTERS
- vol. 2, no. 1, pp. 117 - 123
- AMER CHEMICAL SOC
- 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.
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