title: Efficiency enhancements in Ag nanoparticles-SiO2-TiO2 sandwiched structure via plasmonic effect-enhanced light capturing.
abstract: TiO2-SiO2-Ag composites are fabricated by depositing TiO2 films on silica substrates embedded with Ag nanoparticles. Enhancement of light absorption of the nanostructural composites is observed. The light absorption enhancement of the synthesized structure in comparison to TiO2 originated from the near-field enhancement caused by the plasmonic effect of Ag nanoparticles, which can be demonstrated by the optical absorption spectra, Raman scattering investigation, and the increase of the photocatalytic activity. The embedded Ag nanoparticles are formed by ion implantation, which effectively prevents Ag to be oxidized through direct contact with TiO2. The suggested incorporation of plasmonic nanostructures shows a great potential application in a highly efficient photocatalyst and ultra-thin solar cell.
authors: Department of Physics and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Wuhan University, Wuhan, 430072, People's Republic of China. xxh@whu.edu.cn.
authors: Jinxia
authors: J
authors: Xu
authors: Xiangheng
authors: X
authors: Xiao
authors: Andrey L
authors: AL
authors: Stepanov
authors: Fen
authors: F
authors: Ren
authors: Wei
authors: W
authors: Wu
authors: Guangxu
authors: G
authors: Cai
authors: Shaofeng
authors: S
authors: Zhang
authors: Zhigao
authors: Z
authors: Dai
authors: Fei
authors: F
authors: Mei
authors: Changzhong
authors: C
authors: Jiang
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