A solvothermal synthetic route to CdE (E = S, Se) semiconductor nanocrystalline

被引：28
|
作者：
Li, YD [1 ]
Liao, HW [1 ]
Fan, Y [1 ]
Li, LQ [1 ]
Qian, YT [1 ]
机构：
[1] Univ Sci & Technol China, Dept Chem, Anhua 230026, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 1999年 / 58卷 / 01期
基金：
中国国家自然科学基金;
关键词：
cadmium chalcogenide; II-VI semiconductor; elemental reaction; solvothermal;
D O I：
10.1016/S0254-0584(98)00254-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
CdE (E = S, Se) nanocrystallines have been successfully prepared through a solvothermal elemental combination reaction in diethylamine at 180 degrees C. X-ray powder diffraction (XRD) pattern shows that CdS is the coexistence of two phases: cubic and hexagonal and CdSe is cubic. Transmission electron microscope (TEM) shows that the morphologies of CdS and CdSe are mostly spherical in shape. Raman spectrum of the obtained CdS indicates that there are two overtones of longitudinal optical (LO) phonon. X-ray photoelectron spectrum was used to analyze the composition of CdSe and the ratio of Cd to Se is 1.03 : 1. The influence of solvent and time was initially investigated. We found that the coordinating ability of solvent strongly influences the reaction process and structure, and morphology of the products. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：87 / 89
页数：3
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