Radiation enhancement by graphene oxide on microelectromechanical system emitters for highly selective gas sensing
Infrared gas sensors have been proven promising for broad applications in Internet of Things and Industrial Internet of Things. However, the lack of miniaturized light sources with good compatibility and tunable spectral features hinders their widespread utilization. Herein, a strategy is proposed t...
| Main Authors: | , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/138671 |
| _version_ | 1811679762941214720 |
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| author | Li, Nanxi Yuan, Hongye Xu, Linfang Tao, Jifang Ng, Doris Keh Ting Lee, Lennon Yao Ting Cheam, Daw Don Zeng, Yongquan Qiang, Bo Wang, Qijie Cai, Hong Singh, Navab Zhao, Dan |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Li, Nanxi Yuan, Hongye Xu, Linfang Tao, Jifang Ng, Doris Keh Ting Lee, Lennon Yao Ting Cheam, Daw Don Zeng, Yongquan Qiang, Bo Wang, Qijie Cai, Hong Singh, Navab Zhao, Dan |
| author_sort | Li, Nanxi |
| collection | NTU |
| description | Infrared gas sensors have been proven promising for broad applications in Internet of Things and Industrial Internet of Things. However, the lack of miniaturized light sources with good compatibility and tunable spectral features hinders their widespread utilization. Herein, a strategy is proposed to increase the radiated power from microelectromechanical-based thermal emitters by coating with graphene oxide (GO). The radiation can be substantially enhanced, which partially stems from the high emissivity of GO coating demonstrated by spectroscopic methods. Moreover, the sp2 structure within GO may induce plasmons and thus couple with photons to produce blackbody radiation and/or new thermal emission sources. As a proof-of-concept demonstration, the GO-coated emitter is integrated into a multifunctional monitoring platform and evaluated for gas detection. The platform exhibits sensitive and highly selective detection toward CO2 at room temperature with a detection limit of 50 ppm and short response/recovery time, outperforming the state-of-the-art gas sensors. This study demonstrates the emission tailorability of thermal emitters and the feasibility of improving the associated gas sensing property, offering perspectives for designing and fabricating high-end optical sensors with cost-effectiveness and superior performance. |
| first_indexed | 2024-10-01T03:14:19Z |
| format | Journal Article |
| id | ntu-10356/138671 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:14:19Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1386712020-05-11T08:44:54Z Radiation enhancement by graphene oxide on microelectromechanical system emitters for highly selective gas sensing Li, Nanxi Yuan, Hongye Xu, Linfang Tao, Jifang Ng, Doris Keh Ting Lee, Lennon Yao Ting Cheam, Daw Don Zeng, Yongquan Qiang, Bo Wang, Qijie Cai, Hong Singh, Navab Zhao, Dan School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering MEMS Emitters Thermal Emission Infrared gas sensors have been proven promising for broad applications in Internet of Things and Industrial Internet of Things. However, the lack of miniaturized light sources with good compatibility and tunable spectral features hinders their widespread utilization. Herein, a strategy is proposed to increase the radiated power from microelectromechanical-based thermal emitters by coating with graphene oxide (GO). The radiation can be substantially enhanced, which partially stems from the high emissivity of GO coating demonstrated by spectroscopic methods. Moreover, the sp2 structure within GO may induce plasmons and thus couple with photons to produce blackbody radiation and/or new thermal emission sources. As a proof-of-concept demonstration, the GO-coated emitter is integrated into a multifunctional monitoring platform and evaluated for gas detection. The platform exhibits sensitive and highly selective detection toward CO2 at room temperature with a detection limit of 50 ppm and short response/recovery time, outperforming the state-of-the-art gas sensors. This study demonstrates the emission tailorability of thermal emitters and the feasibility of improving the associated gas sensing property, offering perspectives for designing and fabricating high-end optical sensors with cost-effectiveness and superior performance. NRF (Natl Research Foundation, S’pore) ASTAR (Agency for Sci., Tech. and Research, S’pore) Accepted version 2020-05-11T08:44:54Z 2020-05-11T08:44:54Z 2019 Journal Article Li, N., Yuan, H., Xu, L., Tao, J., Ng, D. K. T., Lee, L. Y. T., . . . Zhao, D. (2019). Radiation enhancement by graphene oxide on microelectromechanical system emitters for highly selective gas sensing. ACS Sensors, 4(10), 2746-2753. doi:10.1021/acssensors.9b01275 2379-3694 https://hdl.handle.net/10356/138671 10.1021/acssensors.9b01275 31524375 2-s2.0-85072972600 10 4 2746 2753 en ACS Sensors This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Sensors, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acssensors.9b01275 application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering MEMS Emitters Thermal Emission Li, Nanxi Yuan, Hongye Xu, Linfang Tao, Jifang Ng, Doris Keh Ting Lee, Lennon Yao Ting Cheam, Daw Don Zeng, Yongquan Qiang, Bo Wang, Qijie Cai, Hong Singh, Navab Zhao, Dan Radiation enhancement by graphene oxide on microelectromechanical system emitters for highly selective gas sensing |
| title | Radiation enhancement by graphene oxide on microelectromechanical system emitters for highly selective gas sensing |
| title_full | Radiation enhancement by graphene oxide on microelectromechanical system emitters for highly selective gas sensing |
| title_fullStr | Radiation enhancement by graphene oxide on microelectromechanical system emitters for highly selective gas sensing |
| title_full_unstemmed | Radiation enhancement by graphene oxide on microelectromechanical system emitters for highly selective gas sensing |
| title_short | Radiation enhancement by graphene oxide on microelectromechanical system emitters for highly selective gas sensing |
| title_sort | radiation enhancement by graphene oxide on microelectromechanical system emitters for highly selective gas sensing |
| topic | Engineering::Electrical and electronic engineering MEMS Emitters Thermal Emission |
| url | https://hdl.handle.net/10356/138671 |
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