文献类型：会议论文

英文题名：Synthesis and Characterization of Water-soluble Sb2S3 Quantum Dots

作者：Pi, Na[1];Huang, Yan[1];Yao, Pingping[1];Wei, Qinmei[1];Liu, Yicheng[1];Yang, Yuxiang[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

会议论文集：International Symposium on Materials Application and Engineering (SMAE)

会议日期：AUG 20-21, 2016

会议地点：Chiang Mai, THAILAND

语种：英文

外文关键词：High resolution transmission electron microscopy - Semiconductor quantum dots - Energy dispersive spectroscopy - Nanocrystals - Optical properties - Precipitation (chemical) - Scanning electron microscopy - X ray diffraction

摘要：Taking thioacetamide (TAA) as sulfur source and mercaptoacetic acid as capping agent, water-soluble Sb2S3 quantum dots were synthesized in aqueous-phase with precipitation method. The influence of temperature (65 to 85 degrees C) and reaction time (3 to 7 h) on morphological characteristics of the products was studied. The as-prepared Sb2S3 quantum dots were characterized with X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet-visible spectrophotometry (UV-vis) and photoluminescence (PL), which suggested the Sb2S3 quantum dots have uniform size distribution and excellent optical properties. Moreover, a formation mechanism of Sb2S3 quantum dots was also proposed.