人工晶体学报2012，Vol.41Issue(2)：430-435,6.
不同硫源对微波水热法制备SnS粉体结构和光学性能的影响
Effect of Different S Sources on the Structure and Optical Properties of SnS Powders Prepared by Microwave Hydrothermal Method
摘要
Abstract
SnS powders were synthesized by a microwave hydrothermal method using SnCl2 o 2H2O as Sn source and (NH4)2S, SC(NH2)2, CH3CSNH2, Na2S2O3 as S source under same reaction condition. The influence of differnent S source on the crystallization, morphology and optical properties of SnS crystallity were investigated. The phase composition and morphology of the as-prepared products were characterized by XRD, FESEM and TEM. The results indicated that the as-prepared products are orthorhombic structure except the S source of Na2S2O3. The morphology of SnS powders exhibit quasi-spheres, irregular cuboid and flower clusters structure under different S source. UV-Visible spectral analysis shows that the optical band gap of the as-prepared products is about 1. 48-1. 61 eV. Photoluminescence spectrum measured at room temperature shows near-infrared emission at 830 ran. PL spectrum indicated that SnS powders applying SC(NH2)2 and CH3CSNH2 as sulfur source showed strong edge-emission, but SnS nanoparticles applying (NH4)2S as sulfur source showed mainly quantum connement effect and defects.关键词
SnS粉体/硫源/微波水热法/光学性能Key words
SnS powders/sulfur source/microwave hydrothermal method/optical properties分类
化学化工引用本文复制引用
张培培,黄剑锋,曹丽云,张烨..不同硫源对微波水热法制备SnS粉体结构和光学性能的影响[J].人工晶体学报,2012,41(2):430-435,6.基金项目
陕西省自然科学基金(2010JM6001) （2010JM6001）
国家自然科学基金(50942047) （50942047）
陕西科技大学研究生创新基金资助 （）
