Robust trap effect in transition metal dichalcogenides for advanced multifunctional devices

Lei Yin, Peng He, Ruiqing Cheng, Feng Wang, Fengmei Wang, Zhenxing Wang, Yao Wen and Jun He ()
Additional contact information
Lei Yin: National Center for Nanoscience and Technology
Peng He: National Center for Nanoscience and Technology
Ruiqing Cheng: National Center for Nanoscience and Technology
Feng Wang: National Center for Nanoscience and Technology
Fengmei Wang: National Center for Nanoscience and Technology
Zhenxing Wang: National Center for Nanoscience and Technology
Yao Wen: National Center for Nanoscience and Technology
Jun He: National Center for Nanoscience and Technology

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract Defects play a crucial role in determining electric transport properties of two-dimensional transition metal dichalcogenides. In particular, defect-induced deep traps have been demonstrated to possess the ability to capture carriers. However, due to their poor stability and controllability, most studies focus on eliminating this trap effect, and little consideration was devoted to the applications of their inherent capabilities on electronics. Here, we report the realization of robust trap effect, which can capture carriers and store them steadily, in two-dimensional MoS2xSe2(1-x) via synergistic effect of sulphur vacancies and isoelectronic selenium atoms. As a result, infrared detection with very high photoresponsivity (2.4 × 105 A W−1) and photoswitching ratio (~108), as well as nonvolatile infrared memory with high program/erase ratio (~108) and fast switching time, are achieved just based on an individual flake. This demonstration of defect engineering opens up an avenue for achieving high-performance infrared detector and memory.

Date: 2019
References: Add references at CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-019-12200-x Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12200-x

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-019-12200-x

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().