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

Soonjae Pyo; Yunsung Kang; Jungwook Choi; Jongbaeg Kim

doi:10.1109/MEMSYS.2018.8346607

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 proceeding › Conference contribution › peer-review

5 Scopus citations

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 language	English
Title of host publication	2018 IEEE Micro Electro Mechanical Systems, MEMS 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	531-534
Number of pages	4
ISBN (Electronic)	9781538647820
DOIs	https://doi.org/10.1109/MEMSYS.2018.8346607
State	Published - 24 Apr 2018
Event	31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018 - Belfast, United Kingdom Duration: 21 Jan 2018 → 25 Jan 2018

Publication series

Name	Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Volume	2018-January
ISSN (Print)	1084-6999

Conference

Conference	31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018
Country/Territory	United Kingdom
City	Belfast
Period	21/01/18 → 25/01/18

Access to Document

10.1109/MEMSYS.2018.8346607

Cite this

Pyo, S., Kang, Y., Choi, J., & Kim, J. (2018). Improvement of photoresponse in MoS₂ by SnO₂-functionalization and its application to flexible and transparaent photodetector. In 2018 IEEE Micro Electro Mechanical Systems, MEMS 2018 (pp. 531-534). (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS); Vol. 2018-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MEMSYS.2018.8346607

Pyo, Soonjae ; Kang, Yunsung ; Choi, Jungwook et al. / Improvement of photoresponse in MoS₂ by SnO₂-functionalization and its application to flexible and transparaent photodetector. 2018 IEEE Micro Electro Mechanical Systems, MEMS 2018. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 531-534 (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)).

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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.",

author = "Soonjae Pyo and Yunsung Kang and Jungwook Choi and Jongbaeg Kim",

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Pyo, S, Kang, Y, Choi, J & Kim, J 2018, Improvement of photoresponse in MoS₂ by SnO₂-functionalization and its application to flexible and transparaent photodetector. in 2018 IEEE Micro Electro Mechanical Systems, MEMS 2018. Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS), vol. 2018-January, Institute of Electrical and Electronics Engineers Inc., pp. 531-534, 31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018, Belfast, United Kingdom, 21/01/18. https://doi.org/10.1109/MEMSYS.2018.8346607

Improvement of photoresponse in MoS₂ by SnO₂-functionalization and its application to flexible and transparaent photodetector. / Pyo, Soonjae; Kang, Yunsung; Choi, Jungwook et al.
2018 IEEE Micro Electro Mechanical Systems, MEMS 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 531-534 (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS); Vol. 2018-January).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - 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.

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Pyo S, Kang Y, Choi J, Kim J. Improvement of photoresponse in MoS₂ by SnO₂-functionalization and its application to flexible and transparaent photodetector. In 2018 IEEE Micro Electro Mechanical Systems, MEMS 2018. Institute of Electrical and Electronics Engineers Inc. 2018. p. 531-534. (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)). doi: 10.1109/MEMSYS.2018.8346607