Semiconductor overlayers for protecting silver nanoparticles of dye sensitized solar cells based on atomic layer deposition

Xiaolan Sun; Xiaohong Liu; Chao Li; Libin Xie; Yanhua Dong

doi:10.1117/12.905653

17 December 2011 Semiconductor overlayers for protecting silver nanoparticles of dye sensitized solar cells based on atomic layer deposition

Xiaolan Sun, Xiaohong Liu, Chao Li, Libin Xie, Yanhua Dong

Author Affiliations +

Proceedings Volume 8312, Display, Solid-State Lighting, Photovoltaics, and Optoelectronics in Energy III; 83120W (2011) https://doi.org/10.1117/12.905653
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

Silver nanoparticles have been found many interesting applications, such as absorption amplifiers in dye-sensitized solar cells. However, silver nanoparticles are easily oxidized. In order to protect silver nanoparticles, atomic layers of TiO₂were deposited onto silver nanoparticles coated to a glass slide. Then the glass slide was exposed to corrosive I^-/I₃^- solutions, and the degree of silver etching was measured via scanning electron microscopy (SEM) and ultraviolet-visible spectroscopy (UVS). It was found that 3 nm (30 cycles) of Al₂O₃ with 9 nm of (90 cycles) TiO₂ could completely protect silver nanoparticles from oxidization.

Citation Download Citation

Xiaolan Sun, Xiaohong Liu, Chao Li, Libin Xie, and Yanhua Dong "Semiconductor overlayers for protecting silver nanoparticles of dye sensitized solar cells based on atomic layer deposition", Proc. SPIE 8312, Display, Solid-State Lighting, Photovoltaics, and Optoelectronics in Energy III, 83120W (17 December 2011); https://doi.org/10.1117/12.905653

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