Back to Search
Start Over
Self‐Driven Fast‐Speed Photodetector Based on BP/ReS2 van der Waals Heterodiode
- Source :
- Advanced Sensor Research, Vol 2, Iss 9, Pp n/a-n/a (2023)
- Publication Year :
- 2023
- Publisher :
- Wiley-VCH, 2023.
-
Abstract
- Abstract Broadband photodetectors based on 2D layered materials provide great potential applications in night vision, sensing, and communications. However, it remains a challenge for detectors to achieve both high photoresponsivity and fast response. Here, a high‐sensitive photodetector based on ReS2/BP van der Waals (vdW) heterodiode with fast speed, rising time (τr) of 770 ns, and decay time (τd) of 760 ns under a 637 nm laser is reported. The detection range is covered from visible to mid‐wave infrared (MWIR) 0.405–3.753 μm. In the visible range, a high photoresponsivity of 107.1 AW−1, competitive specific detectivity (D*) of 1.89 × 1010 cm Hz1/2 W−1, and a low noise equivalent power of 3.03 × 10−14 W Hz−1/2 are obtained. In the MWIR the D* of 3.26 × 108 cm Hz1/2 W−1 is demonstrated in the photovoltaic model. Notably, the photodiode realizes a high external quantum efficiency of 71.8%, and a high power conversion efficiency of 2.0%. This work provides a way to design broadband response and fast‐speed self‐driven photodetectors with great potential applications in weak light intensity.
Details
- Language :
- English
- ISSN :
- 27511219
- Volume :
- 2
- Issue :
- 9
- Database :
- Directory of Open Access Journals
- Journal :
- Advanced Sensor Research
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.254fa4224c4f60a0827eea65b04b3f
- Document Type :
- article
- Full Text :
- https://doi.org/10.1002/adsr.202300029