Study of CZTS nano-powder synthesis by hot injection method by variation of Cu and Zn concentrations

被引：6

作者：

Kumar, Suresh ^{[1
]}

Kumar, Vikash ^{[1
]}

Mikli, Valdek ^{[1
]}

Varema, Tiit ^{[1
]}

Altosaar, Mare ^{[1
]}

Grossberg, Maarja ^{[1
]}

机构：

[1] Tallinn Univ Technol, Inst Mat Sci, Ehitajate Tee 5, EE-19086 Tallinn, Estonia

来源：

PROCEEDINGS OF THE 2016 E-MRS SPRING MEETING SYMPOSIUM T - ADVANCED MATERIALS AND CHARACTERIZATION TECHNIQUES FOR SOLAR CELLS III | 2016年 / 102卷

关键词：

CZTS; nano-powders; copper zinc tin sulphide; solution based synthesis; Cu and Zn concentration; CU2ZNSNS4; NANOCRYSTALS; SOLAR-CELLS; KESTERITE; PRECURSOR; FACILE;

D O I：

10.1016/j.egypro.2016.11.328

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Copper Zinc Tin Sulphide (CZTS) nano-powders were synthesized by solution based method in oleylamine at 215 degrees C, 225 degrees C and 235 degrees C using copper pentane2, 4-dionate, zinc acetate, tin (II) chloride and elemental sulphur as precursors. The influence of initial Cu/ (Zn + Sn) concentration ratio (from 0.82 to 0.33) on the morphology, phase composition and elemental composition of nano-powders was studied. It was found that the average size of colloidal nano-particles of CZTS nano-powders increased from 20 nm to 10 mu m with decreasing initial Cu/ (Zn + Sn) concentration ratio at every used synthesis temperature. The elemental composition of the formed nano-powders was compatible to near-stoichiometric CZTS if initial Cu/ (Zn + Sn) concentration ratios were 0.82 and 0.74. Higher initial zinc concentration i.e. higher chemical potential at specific temperature reduces the final tin concentration component in the colloidal nano-powders. (C) 2016 The Authors. Published by Elsevier Ltd.

引用

页码：136 / 143

页数：8

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