AI Article Synopsis
- Researchers are focusing on broadband infrared photodetectors made from two-dimensional (2D) materials like CoSe, which are useful in areas such as remote sensing and thermal imaging.
- The CoSe photodetector is unique as it works at room temperature and shows broad response capabilities from 450 nm to 10.6 μm, marking its first application in infrared photodetectors.
- Created using chemical vapor deposition, the CoSe material is relatively large (up to 71.8 μm) and demonstrates a high photoresponsivity of 2.58 A/W under specific infrared light conditions, indicating potential for advances in magnetoelectronics and photodetection technology.
Article Abstract
Broadband infrared photodetectors based on two-dimensional (2D) materials which are the research focus in the infrared field, have wide applications in remote sensing, thermal imaging, and astronomy observation. In this article, the photodetector based on 2D ferromagnetic material CoSe is studied at room temperature, demonstrating the air-stable, broadband, and up to long wavelength properties. The CoSe material is applied to infrared photodetectors for the first time. The 2D material CoSe is synthesized by using the chemical vapor deposition method. The size of the as-grown CoSe is up to 71.8 μm. The photoresponse of the CoSe photodetector ranges from 450 nm to 10.6 μm. The photoresponsivity of this photodetector is up to 2.58 A W under the 10.6 μm illumination at room temperature. This work provides a new material for broadband photodetector at room temperature and builds a bridge for the magnetoelectronic and broadband photoelectric fields.
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| http://dx.doi.org/10.1088/1361-6528/ab9867 | DOI Listing |
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