Self-filtering narrowband perovskite photodetector with ultra-narrowband and high spectral rejection ratio
Liao, Yuhan, Wang, Xin, Pan, Yuzhu, Xu, Yubing, Li, Qing, Zhang, Xiaobing, Chen, Jing, Zhu, Zhuoya, Zhao, Zhiwei, Ertugrul, Mehmet, Furuta, Mamoru, Elemike, Elias Emeka, Abbasian, Mojtaba, Zhou, Jianming, Lei, Wei
Narrowband photodetectors have broad application prospects in many fields where only a range of specific wavelengths of light needs tobe detected. However, the current narrowband detectors have some disadvantages, such as the integration is difficult, the full width at half-maximum is not narrow enough, and the spectral rejection ratio is not ideal (<= 20). Here, we present a self-filtering photodetector basedon MAPbX3single crystals with a very narrow spectral response and a full width of 15 nm at half maximum. It also shows a high responsivity (similar to 100 mA/W) and a high spectral rejection ratio (similar to 300). What is more, the response spectrum can be tuned within a certain range(from 440 to 560 nm) by varying the halide composition and thus its bandgap. This provides a new design paradigm for self-filtering narrowband photodetectors. (C) 2022 Author(s).
- Journal
- APL MATERIALS
- Year
- 2022
- Volume
- 10
- Issue
- 10
- ISSN
- 2166-532X
- DOI
- 10.1063/5.0120959
- WoS UID
- WOS:000890879600001