Facile preparation of Ag2S nanoparticles with broad photoelectric response region

被引：25
|
作者：
Yang, Wanshi [1 ]
Xie, Tengfeng [1 ]
Jiang, Tengfei [1 ]
Wang, Dejun [1 ]
机构：
[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2013年 / 433卷
基金：
中国国家自然科学基金;
关键词：
Ag2S; Nanoparticles; Semiconductors; Surface photovoltage; Photoelectric detection; NANOCRYSTALS; NANOWIRES; HYDROGEN; SILVER;
D O I：
10.1016/j.colsurfa.2013.05.007
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this paper, Ag2S nanoparticles (NPs) are prepared by a simple one-step hydrothermal synthesis. Various particle diameters of Ag2S NPs are obtained under different concentrations of surfactants. A mechanism for the nucleation and growth of Ag2S NPs under the influence of surfactants is proposed. X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and UV-vis absorption spectroscopy are used to characterize the obtained product. In order to investigate the photoelectric properties of the Ag2S NPs, surface photovoltage (SPV) technique was studied. The Ag2S NPs perform intense photoelectric response in the range of NIR and visible region, which could be applied in photoelectric detector. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：55 / 58
页数：4
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