Flexible chemical sensors based on hybrid layer consisting of molybdenum disulphide nanosheets and carbon nanotubes

Sungho Kim; Jinkyu Han; Min A. Kang; Wooseok Song; Sung Myung; Sang Woo Kim; Sun Sook Lee; Jongsun Lim; Ki Seok An

doi:10.1016/j.carbon.2017.12.065

Flexible chemical sensors based on hybrid layer consisting of molybdenum disulphide nanosheets and carbon nanotubes

Sungho Kim, Jinkyu Han, Min A. Kang, Wooseok Song, Sung Myung, Sang Woo Kim, Sun Sook Lee, Jongsun Lim, Ki Seok An

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A facile synthesis method was developed for preparing hybrid 2-dimensional (2D) films, based on large-scale molybdenum disulfide (MoS₂) nanosheets and single-walled carbon nanotubes (SWCNTs), for flexible sensors. Here, 1-dimensional (1D) SWCNTs were combined with MoS₂ nanosheets during the MoS₂ synthesis process for improving the flexibility and stability of the 2D MoS₂ nanosheet. Uniform MoS₂ nanosheets were successfully synthesized via chemical vapor deposition (CVD) using a porphyrin-type organic promoter. This study demonstrates the high performance and enhanced sensitivity of the chemical gas sensors that were fabricated using hybrid MoS₂-SWCNT layers; the enhancement is due to the sensitive gas adsorption by SWCNTs in the MoS₂ nanosheets. In addition, the hybrid MoS₂-SWCNT films, transferred on a flexible polyethylene terephthalate (PET) substrate, were employed for the analysis of physical properties of chemical sensors as a function of the number of bending cycles. The hybrid MoS₂-SWCNT-based sensors showed stable sensing performance after 10⁵ bending cycles, whereas the resistance of MoS₂-based sensors increased to approximately 300% under the same bending process.

Original language	English
Pages (from-to)	607-612
Number of pages	6
Journal	Carbon
Volume	129
DOIs	https://doi.org/10.1016/j.carbon.2017.12.065
Publication status	Published - 2018 Apr

Bibliographical note

Funding Information:
This research was supported by a grant ( 2011-0031636 ) from the Center for Advanced Soft Electronics under the Global Frontier Research Program of the Ministry of Science, ICT and Future Planning, Korea .

Publisher Copyright:
© 2017

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)

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10.1016/j.carbon.2017.12.065

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title = "Flexible chemical sensors based on hybrid layer consisting of molybdenum disulphide nanosheets and carbon nanotubes",

abstract = "A facile synthesis method was developed for preparing hybrid 2-dimensional (2D) films, based on large-scale molybdenum disulfide (MoS2) nanosheets and single-walled carbon nanotubes (SWCNTs), for flexible sensors. Here, 1-dimensional (1D) SWCNTs were combined with MoS2 nanosheets during the MoS2 synthesis process for improving the flexibility and stability of the 2D MoS2 nanosheet. Uniform MoS2 nanosheets were successfully synthesized via chemical vapor deposition (CVD) using a porphyrin-type organic promoter. This study demonstrates the high performance and enhanced sensitivity of the chemical gas sensors that were fabricated using hybrid MoS2-SWCNT layers; the enhancement is due to the sensitive gas adsorption by SWCNTs in the MoS2 nanosheets. In addition, the hybrid MoS2-SWCNT films, transferred on a flexible polyethylene terephthalate (PET) substrate, were employed for the analysis of physical properties of chemical sensors as a function of the number of bending cycles. The hybrid MoS2-SWCNT-based sensors showed stable sensing performance after 105 bending cycles, whereas the resistance of MoS2-based sensors increased to approximately 300% under the same bending process.",

author = "Sungho Kim and Jinkyu Han and Kang, {Min A.} and Wooseok Song and Sung Myung and Kim, {Sang Woo} and Lee, {Sun Sook} and Jongsun Lim and An, {Ki Seok}",

note = "Funding Information: This research was supported by a grant ( 2011-0031636 ) from the Center for Advanced Soft Electronics under the Global Frontier Research Program of the Ministry of Science, ICT and Future Planning, Korea . Publisher Copyright: {\textcopyright} 2017",

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doi = "10.1016/j.carbon.2017.12.065",

language = "English",

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AU - Kim, Sungho

AU - Han, Jinkyu

AU - Kang, Min A.

AU - Song, Wooseok

AU - Myung, Sung

AU - Kim, Sang Woo

AU - Lee, Sun Sook

AU - Lim, Jongsun

AU - An, Ki Seok

N1 - Funding Information: This research was supported by a grant ( 2011-0031636 ) from the Center for Advanced Soft Electronics under the Global Frontier Research Program of the Ministry of Science, ICT and Future Planning, Korea . Publisher Copyright: © 2017

PY - 2018/4

Y1 - 2018/4

N2 - A facile synthesis method was developed for preparing hybrid 2-dimensional (2D) films, based on large-scale molybdenum disulfide (MoS2) nanosheets and single-walled carbon nanotubes (SWCNTs), for flexible sensors. Here, 1-dimensional (1D) SWCNTs were combined with MoS2 nanosheets during the MoS2 synthesis process for improving the flexibility and stability of the 2D MoS2 nanosheet. Uniform MoS2 nanosheets were successfully synthesized via chemical vapor deposition (CVD) using a porphyrin-type organic promoter. This study demonstrates the high performance and enhanced sensitivity of the chemical gas sensors that were fabricated using hybrid MoS2-SWCNT layers; the enhancement is due to the sensitive gas adsorption by SWCNTs in the MoS2 nanosheets. In addition, the hybrid MoS2-SWCNT films, transferred on a flexible polyethylene terephthalate (PET) substrate, were employed for the analysis of physical properties of chemical sensors as a function of the number of bending cycles. The hybrid MoS2-SWCNT-based sensors showed stable sensing performance after 105 bending cycles, whereas the resistance of MoS2-based sensors increased to approximately 300% under the same bending process.

AB - A facile synthesis method was developed for preparing hybrid 2-dimensional (2D) films, based on large-scale molybdenum disulfide (MoS2) nanosheets and single-walled carbon nanotubes (SWCNTs), for flexible sensors. Here, 1-dimensional (1D) SWCNTs were combined with MoS2 nanosheets during the MoS2 synthesis process for improving the flexibility and stability of the 2D MoS2 nanosheet. Uniform MoS2 nanosheets were successfully synthesized via chemical vapor deposition (CVD) using a porphyrin-type organic promoter. This study demonstrates the high performance and enhanced sensitivity of the chemical gas sensors that were fabricated using hybrid MoS2-SWCNT layers; the enhancement is due to the sensitive gas adsorption by SWCNTs in the MoS2 nanosheets. In addition, the hybrid MoS2-SWCNT films, transferred on a flexible polyethylene terephthalate (PET) substrate, were employed for the analysis of physical properties of chemical sensors as a function of the number of bending cycles. The hybrid MoS2-SWCNT-based sensors showed stable sensing performance after 105 bending cycles, whereas the resistance of MoS2-based sensors increased to approximately 300% under the same bending process.

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Flexible chemical sensors based on hybrid layer consisting of molybdenum disulphide nanosheets and carbon nanotubes

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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