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

被引：3
|
作者：
Magdy W. [1 ,2 ]
Kanai A. [2 ]
Mahmoud F.A. [1 ]
El Shenawy E.T. [4 ]
Khairy S.A. [3 ]
Hassan H.H. [3 ]
Sugiyama M. [2 ]
机构：
[1] Solid State Physics Department, National Research Centre, Dokki, Cairo
[2] Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba
[3] Department of Physics, Faculty of Science, Cairo University
[4] Solar Energy Department, National Research Centre, Dokki, Cairo
来源：
Japanese Journal of Applied Physics | 2020年 / 59卷 / 10期
关键词：
Thin films - Copper compounds - Solar cells - Rapid thermal annealing - Spray pyrolysis - Organic solvents;
D O I：
10.35848/1347-4065/abb7f1
中图分类号：
学科分类号：
摘要：
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. © 2020 The Japan Society of Applied Physics
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