期刊
THIN SOLID FILMS
卷 517, 期 7, 页码 2461-2464出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2008.11.053
关键词
Kesterite; Synchrotron X-ray diffraction
The formation of kesterite (Cu(2)ZnSnS(4)) from different stoichiometric mixtures of binary and ternary sulphides was investigated by in-situ high temperature synchrotron X-ray diffraction. The data were collected during the heating, the annealing and the cooling cycle. The Rietveld analysis of the diffractograms led us to determine temperature dependent phase changes qualitatively and quantitatively as well as the lattice constants of the different phases. Showing exemplarily with the mixture 2CuS+SnS+ZnS the formation of Cu(2)ZnSnS(4) starts just below 300 degrees C. The volume size of the fcc anion substructure of the newly formed kesterite at 300 degrees C corresponds to the one of the ZnS phase. The lattice parameter of Cu(2)ZnSnS(4) increases nonlinearly with increasing temperature showing possibly the trend of different formation stages. Comparing the lattice constants a and c of the several synthesized kesterites at 700 degrees C among each other and with a pre-synthesized kesterite, remarkable variations were obtained, whereas the ratio of the lattice parameter (c/2a) is comparable. These features led to the assumption that the cation distribution may vary in dependence on temperature and on the phase mixture used as starting material. (C) 2008 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据