Effect of rapid thermal annealing on sprayed Cu2SnS3 thin films for solar-cell application
Effect of rapid thermal annealing on sprayed Cu2SnS3 thin films for solar-cell application
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DOI：
10.35848/1347-4065/abb7f1
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发表时间：
2020-09
影响因子：
1.5
通讯作者：
W. Magdy;A. Kanai;F. A. Mahmoud;E. T. El Shenawy;S. Khairy;H. H. Hassan-H.;M. Sugiyama
中科院分区：
文献类型：
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作者：
W. Magdy;A. Kanai;F. A. Mahmoud;E. T. El Shenawy;S. Khairy;H. H. Hassan-H.;M. Sugiyama
采用化学喷雾热分解和快速热退火两种简单的非真空工艺制备了Cu2SnS3（CTS）三元化合物薄膜。在氮气气氛中退火后，CTS薄膜的晶体质量得到改善，Tauc图中显示的带尾趋于消失。虽然在喷雾热解中使用乙醇作为溶剂，但CTS膜没有被碳和氧污染。硫化改变了CTS的禁带宽度。RTA工艺的优化影响了CTS薄膜的组成，改善了材料缺陷，提高了晶体质量。这些结果代表了使用廉价制造工艺的CTS太阳能电池的实际应用的第一步。
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.