硒
捷克先令
微晶
材料科学
原位
再结晶(地质)
纳米颗粒
化学工程
硫黄
四方晶系
薄膜
结晶学
冶金
化学
纳米技术
晶体结构
地质学
有机化学
古生物学
工程类
作者
Marco Brandl,Mohamed H. Sayed,Christine Chory,Ingo Hammer-Riedel,Jürgen Parisi,Rainer Hock,Levent Gütay
标识
DOI:10.1016/j.jallcom.2017.04.199
摘要
CZTS nanoparticles produced by a wet-chemical method were mixed with different proportions of Selenium powder to observe the sulfur selenium exchange reaction during selenization and the effect of the varying Selenium supply on the tetragonal ordering and recrystallization of the originally disordered cubic structure. Evaluation of the diffraction angle shift of the reflections in in-situ XRD measurements during the selenization process yields the temperature dependent composition of the CZTSSe. The presence of selenium in small to medium amounts seems to benefit the ordering of the cations as well as the crystallite growth, whereas very high proportions seem to reverse the positive effects.
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