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Sm3+-doped CsPbCl2Br1 nanocrystal glasses facilitating high ultraviolet performance of silicon photodetectors.
- Source :
-
Ceramics International . May2023:Part A, Vol. 49 Issue 9, p14017-14023. 7p. - Publication Year :
- 2023
-
Abstract
- Inorganic perovskite nanocrystals exhibit tremendous prospects in optoelectronics. Although the stability of perovskite nanocrystals is considerably improved after being embedded in a glass matrix, subtle difference in the glass composition is still an important factor affecting the glass matrix and perovskite precipitation behavior. In this study, a series of CsPbCl 2 Br 1 nanocrystal glasses with excellent optical properties were prepared by optimizing the composition. Further, we introduced Sm3+ into CsPbCl 2 Br 1 perovskite nanocrystal glass (PNG) to enhance photoluminescence (PL) emissions and improve the ultraviolet response and device stability of silicon photodetectors (Si PDs). After integrating the as-prepared Sm3+-doped CsPbCl 2 Br 1 PNG with Si PDs, the UV response of the Si PDs at 200–400 nm was significantly enhanced. In particular, the responsivity of Sm3+-doped CsPbCl 2 Br 1 PNG-coated Si PDs at 320 nm reaches 7.5 times that of bare Si PDs. Furthermore, Sm3+-doped CsPbCl 2 Br 1 PNG-coated Si PDs displayed good photocurrent stability, with a decrease of only 1.5% after 60 days of operation. Additionally, after integrating 10% Sm3+-doped CsPbCl 2 Br 1 PNG with InGaAs PDs, a broadband response in the ultraviolet to the infrared region is successfully achieved. This study attempts to fabricate perovskite nanocrystal glasses and provides a new perspective for next-generation high-performance UV PDs. [ABSTRACT FROM AUTHOR]
- Subjects :
- *OPTICAL glass
*PHOTODETECTORS
*PRECIPITATION (Chemistry)
*GLASS
*SAMARIUM
*SILICON
Subjects
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 49
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 162705488
- Full Text :
- https://doi.org/10.1016/j.ceramint.2022.12.283