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- Title
High-performance CsPbBr<sub>3-x</sub>Cl<sub>x</sub>/Si heterojunction photodetectors for variable wavelength photodetection.
- Authors
Nie, Wanggao; Liu, Jingyi; Yan, Lairong; Hu, Hao; Lin, Ping; Zhang, Yanbin; Xu, Lingbo; Wang, Peng; Wu, Xiaoping; Cui, Can
- Abstract
All inorganic perovskite CsPbX3 (X = Br, I, Cl) materials emerge as one of the popular materials in the field of optoelectronic devices due to their outstanding photoelectric properties. Their photoelectric detection performance and stability could be further improved by combining mixed halide perovskites with other semiconductor materials, achieving high-performance variable wavelength photodetectors. In this work, high-quality CsPbBr3-xClx microcrystals were successfully grown on silicon (Si) substrates by chemical vapor deposition (CVD) method. By varying the Br/Cl ratio, the prepared CsPbBr3-xClx heterojunction photodetectors exhibit excellent response time in the scale of microsecond and superior narrowband detection capability in a wide wavelength ranges and excellent environmental stability, achieving the maximum responsivity of 102.6 A/W and detectivity of 5.20 × 1012 Jones under 7.8µW /cm2 light illumination intensity. The results suggest an efficient and feasible strategy to the design and improvement of photodetectors for variable wavelength photodetection.
- Publication
Journal of Materials Science: Materials in Electronics, 2024, Vol 35, Issue 26, p1
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-024-13502-7