Journal
NANOTECHNOLOGY
Volume 33, Issue 10, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1361-6528/ac3ce1
Keywords
monolayer MoS2; carbon quantum dots; nanoscroll; hybridization; photodetector
Funding
- National Basic Research Program of China [2019YFB1310200]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [51521003]
- Self-Planned Task of State Key Laboratory of Robotics and System (HIT) [SKLRS201607B]
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In this paper, a new MoS2-based hybrid nanoscrolls device is introduced, which effectively enhances the photodetection performance. The photoresponsivity and detectivity values of the MoS2/CQDs-NS photodetectors are significantly higher than those of the pristine MoS2. This research represents a significant progress in fabricating high-performance MoS2 photodetectors.
The monolayer MoS2 based photodetectors have been widely investigated, which show limited photoelectric performances due to its low light absorption and uncontrollable adsorbates. In this paper, we present a MoS2-based hybrid nanoscrolls device, in which one-dimensional nanoscrollsof MoS2 is hybridized with carbon quantum dots (CQDs). This device architecture effectively enhanced the photodetection performance. The photoresponsivity and detectivity values of MoS2/CQDs-NS photodetectors are respectively 1793 A W-1 and 5.97 x 10(12) Jones, which are 830-fold and 268-fold higher than those of pristine MoS2 under 300 nm illumination at V (ds) = 5 V. This research indicates a significant progress in fabricating high-performance MoS2 photodetectors.
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