A Sensitive Lead-Free Perovskite Photodetector for Self-Powered Blue Light Hazard Detection Application
Article
Article Title | A Sensitive Lead-Free Perovskite Photodetector for Self-Powered Blue Light Hazard Detection Application |
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ERA Journal ID | 4425 |
Article Category | Article |
Authors | An, Xiang, Zhu, Zhi-Guo, Liu, Zheng, Zhang, Xiang, Wang, Jiang, Li, Zong-Yang, Wang, Li, Wu, Chun-Yan, Liang, Feng-Xia, Song, Ping-An and Luo, Lin-Bao |
Journal Title | IEEE Electron Device Letters |
Journal Citation | 45 (7), pp. 1237-1240 |
Number of Pages | 4 |
Year | 2024 |
Place of Publication | United States |
ISSN | 0741-3106 |
1558-0563 | |
Digital Object Identifier (DOI) | https://doi.org/10.1109/LED.2024.3394442 |
Web Address (URL) | https://ieeexplore.ieee.org/document/10509863 |
Abstract | — The detection of blue light hazard for artificial illuminants has become a challenging issue. In this work, a self-powered narrowband photodetector based on lead-free perovskite Cs2AgBiBr6 for low-toxicity blue light hazard detection has been reported. Under zero bias, the responsivity and specific detectivity at response peak of 450 nm can reach 0.327 A/W and 2.8 × 1010 Jones, respectively. In visible light, the photodetector is only sensitive to blue light with a rejection ratio (450/510 nm) of 28.4, effectively suppressing the influence of other visible light without filters. Then an error factor is introduced to establish a relationship between the blue light weighted radiance and photocurrent. By integrating with the back-end circuit, a portable detection system is demonstrated, which can smartly evaluate the blue light hazard level of artificial illuminants. We believe that such highly sensitive and lead-free features render it a promising candidate for human eyes protection in the field of green healthcare. |
Keywords | blue light hazard detection; Lead-free perovskite; narrowband; selfpowered photodetector |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 340302. Macromolecular materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Hefei University of Technology, China |
Centre for Future Materials |
https://research.usq.edu.au/item/z8454/a-sensitive-lead-free-perovskite-photodetector-for-self-powered-blue-light-hazard-detection-application
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