Electrodeposition of near stoichiometric CuInSe2 thin films for photovoltaic applications

7th National Conference on Processing and Characterization of Materials

Chandran, Ramkumar^1 ; Mallik, Archana^1

Electrometallurgy and Corrosion Laboratory, Department of Metallurgical and Materials Engineering, National Institute of Technology, Rourkela, Orissa, India^1

关键词: Aqueous acidic solution;    Copper selenide;    Device performance;    Near stoichiometric;    Photovoltaic applications;    Potentiostatic conditions;    Thin-film absorbers;    Three electrode-system;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/338/1/012018/pdf
DOI  :  10.1088/1757-899X/338/1/012018

来源: IOP

【 摘 要 】

This work investigates on the single step electrodeposition of quality CuInSe2(CIS) thin film absorber layer for photovoltaics applications. The electrodeposition was carried using an aqueous acidic solution with a pH of 2.25. The deposition was carried using a three electrode system in potentiostatic conditions for 50 minutes. The as-deposited and nitrogen (N2) annealed films were characterized using XRD, FE-SEM and Raman spectroscopy. It has been observed that the SDS has the tendency to suppress the copper selenide (CuxSe) secondary phase which is detrimental to the device performance.