Effect of rapid thermal annealing on sprayed Cu2SnS3 thin films for solar-cell application

Ternary compound Cu2SnS3 (CTS) thin films were synthesized using two simple and non-vacuum processes: chemical spray pyrolysis and rapid thermal annealing (RTA). The crystal quality of CTS films improved and the band tailing, shown in Tauc's plot, tended to vanish after annealing in a nitrogen...

Full description

Saved in:
Bibliographic Details
Published in:Japanese Journal of Applied Physics 2020-10, Vol.59 (10)
Main Authors: Magdy, Wafaa, Kanai, Ayaka, Mahmoud, F. A., El Shenawy, E. T., Khairy, S. A., Hassan, H. H., Sugiyama, Mutsumi
Format: Article
Language:English
Subjects:
Annealing
Copper sulfides
Copper Tin Sulfide
Crystal defects
Ethanol
Optimization
Photovoltaic applications
Photovoltaic cells
Rapid Thermal Annealing
Solar cells
Spray pyrolysis
Spray pyrolysis technique
Sulfur atmosphere
Sulfurization
Thin films
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ternary compound Cu2SnS3 (CTS) thin films were synthesized using two simple and non-vacuum processes: chemical spray pyrolysis and rapid thermal annealing (RTA). The crystal quality of CTS films improved and the band tailing, shown in Tauc's plot, tended to vanish after annealing in a nitrogen atmosphere using RTA. Although ethanol was used as a solvent in the spray pyrolysis, the CTS film was not contaminated by carbon and oxygen. The bandgap of CTS was changed via sulfurization. The optimization of the RTA process affected the composition of the CTS thin films, modifying material defects, and improving the crystal quality. These results represent the initial step toward the practical application of CTS solar cells using an inexpensive fabrication process.
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/abb7f1