A Sensitivity Enhanced MWCNT/PDMS Tactile Sensor Using Micropillars and Low Energy Ar+ Ion Beam Treatment
High sensitive flexible and wearable devices which can detect delicate touches have attracted considerable attentions from researchers for various promising applications. This research was aimed at enhancing the sensitivity of a MWCNT/PDMS piezoresistive tactile sensor through modification of its su...
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MDPI AG
2016-01-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/16/1/93 |
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| author | Syed Azkar Ul Hasan Youngdo Jung Seonggi Kim Cho-Long Jung Sunjong Oh Junhee Kim Hyuneui Lim |
| author_facet | Syed Azkar Ul Hasan Youngdo Jung Seonggi Kim Cho-Long Jung Sunjong Oh Junhee Kim Hyuneui Lim |
| author_sort | Syed Azkar Ul Hasan |
| collection | DOAJ |
| description | High sensitive flexible and wearable devices which can detect delicate touches have attracted considerable attentions from researchers for various promising applications. This research was aimed at enhancing the sensitivity of a MWCNT/PDMS piezoresistive tactile sensor through modification of its surface texture in the form of micropillars on MWCNT/PDMS film and subsequent low energy Ar+ ion beam treatment of the micropillars. The introduction of straight micropillars on the MWCNT/PDMS surface increased the sensitivity under gentle touch. Low energy ion beam treatment was performed to induce a stiff layer on the exposed surface of the micropillar structured MWCNT/PDMS film. The low energy ion bombardment stabilized the electrical properties of the MWCNT/PDMS surface and tuned the curvature of micropillars according to the treatment conditions. The straight micropillars which were treated by Ar+ ion with an incident angle of 0° demonstrated the enhanced sensitivity under normal pressure and the curved micropillars which were treated with Ar+ ion with an incident angle of 60° differentiated the direction of an applied shear pressure. The ion beam treatment on micropillar structured MWCNT/PDMS tactile sensors can thus be applied to reliable sensing under gentle touch with directional discrimination. |
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| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T20:51:19Z |
| publishDate | 2016-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-b8d8d6ea0d7f4c43bf1de80dce4a180b2022-12-22T04:03:50ZengMDPI AGSensors1424-82202016-01-011619310.3390/s16010093s16010093A Sensitivity Enhanced MWCNT/PDMS Tactile Sensor Using Micropillars and Low Energy Ar+ Ion Beam TreatmentSyed Azkar Ul Hasan0Youngdo Jung1Seonggi Kim2Cho-Long Jung3Sunjong Oh4Junhee Kim5Hyuneui Lim6Department of Nature-Inspired Nano Convergence Systems, Korea Institute of Machinery and Materials, Daejeon 34103, KoreaDepartment of Nature-Inspired Nano Convergence Systems, Korea Institute of Machinery and Materials, Daejeon 34103, KoreaDepartment of Nature-Inspired Nano Convergence Systems, Korea Institute of Machinery and Materials, Daejeon 34103, KoreaDepartment of Nature-Inspired Nano Convergence Systems, Korea Institute of Machinery and Materials, Daejeon 34103, KoreaDepartment of Nature-Inspired Nano Convergence Systems, Korea Institute of Machinery and Materials, Daejeon 34103, KoreaDepartment of Nature-Inspired Nano Convergence Systems, Korea Institute of Machinery and Materials, Daejeon 34103, KoreaDepartment of Nature-Inspired Nano Convergence Systems, Korea Institute of Machinery and Materials, Daejeon 34103, KoreaHigh sensitive flexible and wearable devices which can detect delicate touches have attracted considerable attentions from researchers for various promising applications. This research was aimed at enhancing the sensitivity of a MWCNT/PDMS piezoresistive tactile sensor through modification of its surface texture in the form of micropillars on MWCNT/PDMS film and subsequent low energy Ar+ ion beam treatment of the micropillars. The introduction of straight micropillars on the MWCNT/PDMS surface increased the sensitivity under gentle touch. Low energy ion beam treatment was performed to induce a stiff layer on the exposed surface of the micropillar structured MWCNT/PDMS film. The low energy ion bombardment stabilized the electrical properties of the MWCNT/PDMS surface and tuned the curvature of micropillars according to the treatment conditions. The straight micropillars which were treated by Ar+ ion with an incident angle of 0° demonstrated the enhanced sensitivity under normal pressure and the curved micropillars which were treated with Ar+ ion with an incident angle of 60° differentiated the direction of an applied shear pressure. The ion beam treatment on micropillar structured MWCNT/PDMS tactile sensors can thus be applied to reliable sensing under gentle touch with directional discrimination.http://www.mdpi.com/1424-8220/16/1/93MWCNT/PDMSpiezoresistive tactile sensormicropillarion beam treatmentcurved pillardirectional detection |
| spellingShingle | Syed Azkar Ul Hasan Youngdo Jung Seonggi Kim Cho-Long Jung Sunjong Oh Junhee Kim Hyuneui Lim A Sensitivity Enhanced MWCNT/PDMS Tactile Sensor Using Micropillars and Low Energy Ar+ Ion Beam Treatment Sensors MWCNT/PDMS piezoresistive tactile sensor micropillar ion beam treatment curved pillar directional detection |
| title | A Sensitivity Enhanced MWCNT/PDMS Tactile Sensor Using Micropillars and Low Energy Ar+ Ion Beam Treatment |
| title_full | A Sensitivity Enhanced MWCNT/PDMS Tactile Sensor Using Micropillars and Low Energy Ar+ Ion Beam Treatment |
| title_fullStr | A Sensitivity Enhanced MWCNT/PDMS Tactile Sensor Using Micropillars and Low Energy Ar+ Ion Beam Treatment |
| title_full_unstemmed | A Sensitivity Enhanced MWCNT/PDMS Tactile Sensor Using Micropillars and Low Energy Ar+ Ion Beam Treatment |
| title_short | A Sensitivity Enhanced MWCNT/PDMS Tactile Sensor Using Micropillars and Low Energy Ar+ Ion Beam Treatment |
| title_sort | sensitivity enhanced mwcnt pdms tactile sensor using micropillars and low energy ar ion beam treatment |
| topic | MWCNT/PDMS piezoresistive tactile sensor micropillar ion beam treatment curved pillar directional detection |
| url | http://www.mdpi.com/1424-8220/16/1/93 |
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