Effect of Trisodium Citrate on the Properties of Electrodeposited Cu2ZnSnS4 (CZTS) Layers on ZnS Thin Films Using a 2-Electrode Method

• 作者: Ajith R. Weerasinghe Gustavo A. Silva Hernandez
• 来源期刊: 材料物理与化学进展(英文)
• 学科: 化学
• 关键词: ELECTRODEPOSITION COMPLEXING Agents CZTS Thin Films SEMICONDUCTORS
• 年，卷（期）: 2018,（8）
• 页码范围: 311-319
• 页数: 9页
• 分类号: O6

摘要

Electrodeposition of CZTS thin films on ZnS was carried using a 2-electrode method to fabricate superstrate structure solar cells. A comprehensive study was performed on the effects of trisodium citrate on the CZTS electrolyte bath. In the present investigation, it is demonstrated that using a CZTS electrolyte with a concentration of 0.2 M trisodium citrate yields CZTS thin films with an electronic bandgap of 1.52 eV, a p-type nature, and good uniformity, which are all results desired for the fabrication of thin film solar cells. Characterization was performed using UV-Vi-IR optical absorption, SEM imaging, Raman spectrometry, and photoelectrochemical cells conducted for electronic bandgap, morphology, chemical composition, and semiconductor conductivity, respectively.