Solar Energy Materials and Solar Cells, Vol.151, 14-23, 2016
Fabrication and characterization of cost-efficient CuSbS2 thin film solar cells using hybrid inks
CuSbS2 (CAS) thin films were fabricated by non-toxic, low-cost and simple non-vacuum methods using hybrid inks, which is a well-known method for fabricating CuInSe2 (CIS) films. Hybrid inks with and without nanoparticles were both tested. CAS thin films were formed on Mo-coated soda lime glass through the sulfurization of spin-coated, as-deposited films. After sulfurization, EDS, XRD, and SEM were used to analyze film composition, crystal structure and morphology. Synthesized Cu-S binary nano particles were used in the hybrid ink containing nanoparticles. However, Sb2S3 was formed as a byproduct with CuSbS2 after sulfurization. On the other hand, for the hybrid ink containing no nano particles, only the CuSbS2 phase was obtained, which enhanced the photovoltaic performance of the cell. The highest conversion efficiency of the fabricated device using the structure Mo/CuSbS2/CdS/i-ZnO/nZnO/Al was 3.22%. (C) 2016 Elsevier B.V. All rights reserved.