基于Cu^+-In^(3+)-Se^(2-)-NH_3-L^(2-)-Cl^--H_2O体系的常温全液相法制备CuInSe_2粉体  

Preparation of basic CuInSe_2 nanoparticles in the solution system of Cu^(+)-In^(3+)-Se^(2-)-NH_3-L^(2-)-Cl^--H_2O

作　　者：李士娜[1] 马瑞新[1,2] 马春红[1] 黄凯[1] 牛建文[1] 朱鸿民[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]高端金属材料特种熔炼与制备北京市重点实验室,北京100083

出　　处：《工程科学学报》2015年第8期1036-1043,共8页Chinese Journal of Engineering

基　　金：国家自然科学基金资助项目(51571010)

摘　　要：采用同时平衡和质量守恒原理对全液相常温常压法制备CuInSe2(CIS)粉体过程中Cu+-In3+-Se2--NH3-L2--Cl--H2O体系的热力学平衡进行分析,并绘制一系列的浓度对数lgc-p H值曲线.依据平衡图,发现溶液中[NH3]T的变化主要影响溶液中[Cu+]T在体系中的浓度变化,[L2-]T的变化主要影响的是体系中[In3+]T的浓度变化,而[Cl-]T的变化对[Cu+]T和[In3+]T的浓度变化均有影响,并可发现在pH 7.0~8.5时沉淀率最高.依据Cu+-In3+-Se2--NH3-L2--Cl--H2O体系的同时平衡和质量守恒原理,采用全液相常温常压法,在pH 7.0~8.5条件下制备出粒径在20~50 nm且基本符合标准化学计量比的CIS纳米粉体.According to the principles of simultaneous equilibria and mass equilibria,CuInSe2（CIS） were prepared by total aqueous process at normal pressure and room temperature. A series of thermodynamic equilibrium equations were deduced for the complex system of Cu^＋-In^3＋-Se^2--NH3-L^2--Cl^--H2O（ T = 298 K）,and the equilibrium curves of lgc-pH were drawn. It was found from these equilibrium diagrams that [NH33]Tprimarily affected the [Cu^＋]Tconcentration,[L2-]Tinfluenced the [In^＋]Tconcentration,and [Cl^-]Thad impact on both. The highest precipitation coefficient was obtained at pH 7. 0-8. 5. As a result,based on the principles of simultaneous equilibria and mass equilibria of the Cu^＋-In^3＋-Se^2--NH3-L^2--Cl^--H2O system（ T = 298 K） and used total aqueous process at normal pressure and room temperature,CIS nanoparticles can be synthesized by adjusting the pH value to 7. 0-8. 5,and their size is about 20 to 50 nm.

关 键 词：薄膜太阳能电池 铜铟硒化合物 纳米颗粒 pH值 

分 类 号：TB383[一般工业技术—材料科学与工程] TM914.4[电气工程—电力电子与电力传动]