Ultrasensitive photodetectors based on a high-quality LiInSe2 single crystal. Issue 46 (8th November 2018)

• Record Type: Journal Article
• Authors: Jia, Ning; Wang, Shanpeng; Wang, Pengfei; Li, Chunlong; Yu, TongTong; Qiao, Jie; Li, Chenning; Xiong, Xixi; Sun, Jia-Lin; Tao, Xutang
• Is Part Of: Journal of materials chemistry. Volume 6:Issue 46(2018)
• Page Start: 12615
• Page End: 12622
• Publication Date: 2018-11-08
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c8tc04337j
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : An ultrasensitive photodetector based on high-quality LiInSe2 (LISe) was systemically investigated. The device exhibited a high on/off current ratio, high detectivity, fast response speed, and high stability. This work may lay the foundation and ignite future research interest on LISe in photodetection. Abstract : As an environmentally friendly and chemically robust crystal, LiInSe2 (LISe) exhibits promising optoelectronic properties. Here, an ultrasensitive metal–semiconductor–metal (MSM) structured photodetector based on a high-quality LISe crystal was systemically investigated. Remarkably, the LISe based photodetectors exhibit an outstanding photosensitivity with a high on/off current ratio (6.80 × 10 4 ), fast photoresponse ( t rise = 180 μs and t decay = 200 μs), and high detectivity (2.16 × 10 12 Jones). This work may lay the foundation and ignite future research interest on chalcogenide crystals in photodetectors.