Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Main positions:1. Instructor of the "Talent Program" of the Chinese Ministry of Education and the China Association for Science and Technology2. Specially appointed expert of Hunan Overseas Chinese Federation3. "Optics" ， editorial board4. Member of American Physical Society, American Society of Electrical and Electronics Engineers, American Chemical Society, Royal Society of Chemistry.
Hits:
DOI number:10.1364/OE.415060
Journal:Optics Express
Abstract:Rhenium disulfide (ReS2) has emerged as a promising material for future optoelectric applications due to its extraordinary electrical, mechanical, and optoelectrical properties. However, the ReS2-based photodetectors are severely restricted by their slow response speed (>10 s). Here, we demonstrate a high-performance polarization-sensitive photodetector based on suspended ReS2. Such a transistor shows an n-type behavior with the mobility of about 14.1 cm2V−1s−1, an on/off ratio of 105, and a responsivity of 0.22 A/W. Benefitting from well-developed contact between Au and the ReS2 channel and reduced interface scattering from the Si substrate, the response time of the device can be as short as 83.5 and 325.3µs, respectively, which are three orders of magnitude faster than that reported earlier. Furthermore, the suspended ReS2 photodetector also has the capability to detect polarized light (Imax/Imin ≈ 1.4 at 532 nm) due to the robust in-plane anisotropy of the material. These findings offer an efficient approach for improving the performance of ReS2-based photodetectors.
Correspondence Author:Jiahong Zhong, Cheng Zeng, Juan Yu, Lingkai Cao, Junnan Ding, Zongwen Liu, and Yanping Liu YP. Liu(刘艳平)*
Discipline:Natural Science
First-Level Discipline:Physics
Document Type:J
Volume:29
Issue:3
Page Number:3567-3574
Translation or Not:no
Date of Publication:2021-02-01
Included Journals:SCI
Links to published journals:https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-29-3-3567&id=446812
