Improvement of photoresponse in MoS2 by SnO2-functionalization and its application to flexible and transparaent photodetector

Soonjae Pyo, Yunsung Kang, Jungwook Choi, Jongbaeg Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We demonstrate an improved photoresponse of molybdenum disulfide (MoS2) functionalized with tin oxide (SnO2) and present its application to flexible and transparent photodetector Under illumination by visible light, SnO2-functionalized MoS2 induces the transfer of photo-generated electrons from MoS2 to SnO2 preventing the recombination of photo-excited electron-hole pairs. This photo-induced carrier separation process leads to p-type doping of MoS2, resulting in an increase of current. Accordingly, SnO2-functionalized MoS2 exhibited dramatically improved photoresponse (480%) compared to pristine MoS2. The photodetector fabricated on polyethylene terephthalate (PET) substrate also exhibited high flexibility and transparency, which is advantageous for various applications such as electronic eyes, wearable sensors, and other optoelectronics.

Original languageEnglish
Title of host publication2018 IEEE Micro Electro Mechanical Systems, MEMS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages531-534
Number of pages4
ISBN (Electronic)9781538647820
DOIs
Publication statusPublished - 2018 Apr 24
Event31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018 - Belfast, United Kingdom
Duration: 2018 Jan 212018 Jan 25

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Volume2018-January
ISSN (Print)1084-6999

Other

Other31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018
CountryUnited Kingdom
CityBelfast
Period18/1/2118/1/25

Bibliographical note

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and future Planning (NRF-2015R1A2A1A01005496).

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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