Author(s)

Gustavo A. Silva Hernandez, Ajith R. Weerasinghe

Lyles College of Engineering, California State University of Fresno, Fresno, CA, USA.

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.

Electrodeposition, Complexing Agents, CZTS Thin Films, Semiconductors

Hernandez, G. and Weerasinghe, A. (2018) Effect of Trisodium Citrate on the Properties of Electrodeposited Cu2ZnSnS4 (CZTS) Layers on ZnS Thin Films Using a 2-Electrode Method. Advances in Materials Physics and Chemistry, 8, 311-319. doi: 10.4236/ampc.2018.88021.