Journal
MATERIALS LETTERS
Volume 316, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2022.132032
Keywords
Sb2S3; Solar energy materials; Thin-film; Hydrothermal method
Funding
- National Engineering Laboratory for Digital Construction and Evaluation of Urban Rail transit [2021HJ05]
- National Natural Science Foundation of China [52172185, 62074088, 11604298]
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This study successfully prepared Sb2S3 thin-films using hydrothermal synthesis, and found that adjusting the hydrothermal temperature can change the preferred orientation of Sb2S3 thin-films, leading to improved performance of Sb2S3 solar cells.
Sb2S3 is a promising photoactive material that has attracted extensive research attention, owing to its excellent optical and electrical properties. Sb2S3 has a one-dimensional ribbon structure, and the growth direction of the ribbons significantly changes the carrier transport characteristics of the Sb2S3 thin-film, thereby influencing the performance of Sb2S3 photoelectric devices. In this study, Sb2S3 thin-films are successfully prepared using hydrothermal synthesis. By adjusting the hydrothermal temperature, Sb2S3 thin-films realized the preferred change of orientations: from (hk0) to (hk1). When the hydrothermal temperature is 140 ?, the Sb2S3 thin-film exhibits (221) and (211) preferential growth. The device parameters of Sb2S3 solar cells based on (hk1)-oriented Sb2S3 thin-film are effectively improved compared with those based on (hk0)-oriented Sb2S3 thin-film, and their power conversion efficiency reaches 5.56%. This study may provide guidance for the hydrothermal synthesis of Sb2S3 optoelectronic materials and devices with desirable preferred orientations.
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