Highly sensitive integrated pressure sensor with horizontally oriented carbon nanotube network
This paper presents a functionalized, horizontally oriented carbon nanotube network as a sensing element to enhance the sensitivity of a pressure sensor. The synthesis of horizontally oriented nanotubes from the AuFe catalyst and their deposition onto a mechanically flexible substrate via transfer p...
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Veröffentlicht in: | Nanoscale research letters 2014-01, Vol.9 (1), p.49-49, Article 49 |
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description | This paper presents a functionalized, horizontally oriented carbon nanotube network as a sensing element to enhance the sensitivity of a pressure sensor. The synthesis of horizontally oriented nanotubes from the AuFe catalyst and their deposition onto a mechanically flexible substrate via transfer printing are studied. Nanotube formation on thermally oxidized Si (100) substrates via plasma-enhanced chemical vapor deposition controls the nanotube coverage and orientation on the flexible substrate. These nanotubes can be simply transferred to the flexible substrate without changing their physical structure. When tested under a pressure range of 0 to 50 kPa, the performance of the fabricated pressure sensor reaches as high as approximately 1.68%/kPa, which indicates high sensitivity to a small change of pressure. Such sensitivity may be induced by the slight contact in isolated nanotubes. This nanotube formation, in turn, enhances the modification of the contact and tunneling distance of the nanotubes upon the deformation of the network. Therefore, the horizontally oriented carbon nanotube network has great potential as a sensing element for future transparent sensors. |
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The synthesis of horizontally oriented nanotubes from the AuFe catalyst and their deposition onto a mechanically flexible substrate via transfer printing are studied. Nanotube formation on thermally oxidized Si (100) substrates via plasma-enhanced chemical vapor deposition controls the nanotube coverage and orientation on the flexible substrate. These nanotubes can be simply transferred to the flexible substrate without changing their physical structure. When tested under a pressure range of 0 to 50 kPa, the performance of the fabricated pressure sensor reaches as high as approximately 1.68%/kPa, which indicates high sensitivity to a small change of pressure. Such sensitivity may be induced by the slight contact in isolated nanotubes. This nanotube formation, in turn, enhances the modification of the contact and tunneling distance of the nanotubes upon the deformation of the network. Therefore, the horizontally oriented carbon nanotube network has great potential as a sensing element for future transparent sensors.</description><identifier>ISSN: 1931-7573</identifier><identifier>ISSN: 1556-276X</identifier><identifier>EISSN: 1556-276X</identifier><identifier>DOI: 10.1186/1556-276X-9-49</identifier><identifier>PMID: 24472487</identifier><language>eng</language><publisher>New York: Springer New York</publisher><subject>Chemistry and Materials Science ; Materials Science ; Molecular Medicine ; Nano Express ; Nanochemistry ; Nanoscale Science and Technology ; Nanotechnology ; Nanotechnology and Microengineering</subject><ispartof>Nanoscale research letters, 2014-01, Vol.9 (1), p.49-49, Article 49</ispartof><rights>Mohammad Haniff et al.; licensee Springer. 2014. This article is published under license to BioMed Central Ltd. 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The synthesis of horizontally oriented nanotubes from the AuFe catalyst and their deposition onto a mechanically flexible substrate via transfer printing are studied. Nanotube formation on thermally oxidized Si (100) substrates via plasma-enhanced chemical vapor deposition controls the nanotube coverage and orientation on the flexible substrate. These nanotubes can be simply transferred to the flexible substrate without changing their physical structure. When tested under a pressure range of 0 to 50 kPa, the performance of the fabricated pressure sensor reaches as high as approximately 1.68%/kPa, which indicates high sensitivity to a small change of pressure. Such sensitivity may be induced by the slight contact in isolated nanotubes. This nanotube formation, in turn, enhances the modification of the contact and tunneling distance of the nanotubes upon the deformation of the network. 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subjects | Chemistry and Materials Science Materials Science Molecular Medicine Nano Express Nanochemistry Nanoscale Science and Technology Nanotechnology Nanotechnology and Microengineering |
title | Highly sensitive integrated pressure sensor with horizontally oriented carbon nanotube network |
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