Preparation of AgInS2 nanocrystals and their application as sensitizers for TiO2 nanorod array photoelectrodes

2015 Global Conference on Polymer and Composite Materials

材料科学;化学

Yin, Jianbo^1 ; Jia, Junhong^2

State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou

730050, China^1

State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou

730000, China^2

关键词: Analytical results;    Average diameter;    Controlled synthesis;    Laser particle analyzer;    Photo-electrodes;    Photovoltaic conversion;    Strong absorptions;    Visible absorption spectra;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/87/1/012114/pdf
DOI  :  10.1088/1757-899X/87/1/012114

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper reports the controlled synthesis of AgInS2nanocrystals and their application as sensitizers for TiO2nanorod array photoelectrode. The analytical results of high resolution transmission electron microscope (TEM) and laser particle analyzer show that the as-prepared AgInS2nanoparticles are highly crystallized with an average diameter of 16.67 nm. The results of ultraviolet (UV)-visible absorption spectra indicate that the as-prepared AgInS2nanoparticles have strong absorption in the spectral range of 300 nm-700 nm. The photovoltaic detectable results of TiO2nanorod array photoelectrode sensitized by AgInS2nanocrystals reveal that the composite films red shift to visible light range with high photovoltaic conversion efficiency of 2.076%, which is 3 times higher than that of bare TiO2photoelectrodes.