Flexible and transparent NO2 sensor using functionalized MoS2 with light-enhanced response

Yunsung Kang; Soonjae Pyo; Dae Hyun Baek; Jongbaeg Kim

doi:10.1109/TRANSDUCERS.2017.7994327

Flexible and transparent NO₂ sensor using functionalized MoS₂ with light-enhanced response

Yunsung Kang, Soonjae Pyo, Dae Hyun Baek, Jongbaeg Kim

Yonsei University

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

5 Scopus citations

Abstract

We have developed a flexible and transparent NO₂ sensor based on SnO₂-functionalized MoS₂ and presented its visible light-assisted gas sensing response for the first time. A mechanism of NO₂ detection assisted by visible light was proposed and experimentally verified. The fabricated sensor was able to detect NO₂ at various concentrations ranging from 9 down to 3 ppm at room temperature and under visible light illumination. We observed sensitive decrease in the current at the exposure to NO₂ while the pristine MoS₂-based sensor did not show any significant response.

Original language	English
Title of host publication	TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1429-1432
Number of pages	4
ISBN (Electronic)	9781538627310
DOIs	https://doi.org/10.1109/TRANSDUCERS.2017.7994327
State	Published - 26 Jul 2017
Event	19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017 - Kaohsiung, Taiwan, Province of China Duration: 18 Jun 2017 → 22 Jun 2017

Publication series

Name	TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems

Conference

Conference	19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017
Country/Territory	Taiwan, Province of China
City	Kaohsiung
Period	18/06/17 → 22/06/17

Keywords

flexibility
functionalization
gas sensor
Molybdenum disulfide (MoS)
nitrogen dioxide (NO)
photo-induced charge transfer
transparency

Access to Document

10.1109/TRANSDUCERS.2017.7994327

Cite this

Kang, Y., Pyo, S., Baek, D. H., & Kim, J. (2017). Flexible and transparent NO₂ sensor using functionalized MoS₂ with light-enhanced response. In TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems (pp. 1429-1432). Article 7994327 (TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TRANSDUCERS.2017.7994327

Kang, Yunsung ; Pyo, Soonjae ; Baek, Dae Hyun et al. / Flexible and transparent NO₂ sensor using functionalized MoS₂ with light-enhanced response. TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 1429-1432 (TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems).

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title = "Flexible and transparent NO2 sensor using functionalized MoS2 with light-enhanced response",

abstract = "We have developed a flexible and transparent NO2 sensor based on SnO2-functionalized MoS2 and presented its visible light-assisted gas sensing response for the first time. A mechanism of NO2 detection assisted by visible light was proposed and experimentally verified. The fabricated sensor was able to detect NO2 at various concentrations ranging from 9 down to 3 ppm at room temperature and under visible light illumination. We observed sensitive decrease in the current at the exposure to NO2 while the pristine MoS2-based sensor did not show any significant response.",

keywords = "flexibility, functionalization, gas sensor, Molybdenum disulfide (MoS), nitrogen dioxide (NO), photo-induced charge transfer, transparency",

author = "Yunsung Kang and Soonjae Pyo and Baek, {Dae Hyun} and Jongbaeg Kim",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017 ; Conference date: 18-06-2017 Through 22-06-2017",

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Kang, Y, Pyo, S, Baek, DH & Kim, J 2017, Flexible and transparent NO₂ sensor using functionalized MoS₂ with light-enhanced response. in TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems., 7994327, TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems, Institute of Electrical and Electronics Engineers Inc., pp. 1429-1432, 19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017, Kaohsiung, Taiwan, Province of China, 18/06/17. https://doi.org/10.1109/TRANSDUCERS.2017.7994327

Flexible and transparent NO₂ sensor using functionalized MoS₂ with light-enhanced response. / Kang, Yunsung; Pyo, Soonjae; Baek, Dae Hyun et al.
TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems. Institute of Electrical and Electronics Engineers Inc., 2017. p. 1429-1432 7994327 (TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems).

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

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N2 - We have developed a flexible and transparent NO2 sensor based on SnO2-functionalized MoS2 and presented its visible light-assisted gas sensing response for the first time. A mechanism of NO2 detection assisted by visible light was proposed and experimentally verified. The fabricated sensor was able to detect NO2 at various concentrations ranging from 9 down to 3 ppm at room temperature and under visible light illumination. We observed sensitive decrease in the current at the exposure to NO2 while the pristine MoS2-based sensor did not show any significant response.

AB - We have developed a flexible and transparent NO2 sensor based on SnO2-functionalized MoS2 and presented its visible light-assisted gas sensing response for the first time. A mechanism of NO2 detection assisted by visible light was proposed and experimentally verified. The fabricated sensor was able to detect NO2 at various concentrations ranging from 9 down to 3 ppm at room temperature and under visible light illumination. We observed sensitive decrease in the current at the exposure to NO2 while the pristine MoS2-based sensor did not show any significant response.

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KW - functionalization

KW - gas sensor

KW - Molybdenum disulfide (MoS)

KW - nitrogen dioxide (NO)

KW - photo-induced charge transfer

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Kang Y, Pyo S, Baek DH, Kim J. Flexible and transparent NO₂ sensor using functionalized MoS₂ with light-enhanced response. In TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems. Institute of Electrical and Electronics Engineers Inc. 2017. p. 1429-1432. 7994327. (TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems). doi: 10.1109/TRANSDUCERS.2017.7994327