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Ultra-Sensitive Flexible Tactile Sensor Based on Graphene Film

Flexible tactile sensor can be integrated into artificial skin and applied in industrial robot and biomedical engineering. However, the presented tactile sensors still have challenge in increasing sensitivity to expand the sensor’s application. Aiming at this problem, this paper presents an ultra-se...

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Detalles Bibliográficos
Autores principales: Lü, Xiaozhou, Qi, Liang, Hu, Hanlun, Li, Xiaoping, Bai, Guanghui, Chen, Jun, Bao, Weimin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6915569/
https://www.ncbi.nlm.nih.gov/pubmed/31661933
http://dx.doi.org/10.3390/mi10110730
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author Lü, Xiaozhou
Qi, Liang
Hu, Hanlun
Li, Xiaoping
Bai, Guanghui
Chen, Jun
Bao, Weimin
author_facet Lü, Xiaozhou
Qi, Liang
Hu, Hanlun
Li, Xiaoping
Bai, Guanghui
Chen, Jun
Bao, Weimin
author_sort Lü, Xiaozhou
collection PubMed
description Flexible tactile sensor can be integrated into artificial skin and applied in industrial robot and biomedical engineering. However, the presented tactile sensors still have challenge in increasing sensitivity to expand the sensor’s application. Aiming at this problem, this paper presents an ultra-sensitive flexible tactile sensor. The sensor is based on piezoresistive effect of graphene film and is composed of upper substrate (PDMS bump with a size of 5 mm × 7 mm and a thickness of 1 mm), medial Graphene/PET film (Graphene/PET film with a size of 5 mm × 7 mm, PET with a hardness of 2H) and lower substrate (PI with fabricated electrodes). We presented the structure and reduced the principle of the sensor. We also fabricated several sample devices of the sensor and carried out experiment to test the performance. The results show that the sensor performed an ultra high sensitivity of 10.80/kPa at the range of 0–4 kPa and have a large measurement range up to 600 kPa. The sensor has 4 orders of magnitude between minimum resolution and maximum measurement range which have great advantage compared with state of the art. The sensor is expected to have great application prospect in robot and biomedical.
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spelling pubmed-69155692019-12-24 Ultra-Sensitive Flexible Tactile Sensor Based on Graphene Film Lü, Xiaozhou Qi, Liang Hu, Hanlun Li, Xiaoping Bai, Guanghui Chen, Jun Bao, Weimin Micromachines (Basel) Article Flexible tactile sensor can be integrated into artificial skin and applied in industrial robot and biomedical engineering. However, the presented tactile sensors still have challenge in increasing sensitivity to expand the sensor’s application. Aiming at this problem, this paper presents an ultra-sensitive flexible tactile sensor. The sensor is based on piezoresistive effect of graphene film and is composed of upper substrate (PDMS bump with a size of 5 mm × 7 mm and a thickness of 1 mm), medial Graphene/PET film (Graphene/PET film with a size of 5 mm × 7 mm, PET with a hardness of 2H) and lower substrate (PI with fabricated electrodes). We presented the structure and reduced the principle of the sensor. We also fabricated several sample devices of the sensor and carried out experiment to test the performance. The results show that the sensor performed an ultra high sensitivity of 10.80/kPa at the range of 0–4 kPa and have a large measurement range up to 600 kPa. The sensor has 4 orders of magnitude between minimum resolution and maximum measurement range which have great advantage compared with state of the art. The sensor is expected to have great application prospect in robot and biomedical. MDPI 2019-10-28 /pmc/articles/PMC6915569/ /pubmed/31661933 http://dx.doi.org/10.3390/mi10110730 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lü, Xiaozhou
Qi, Liang
Hu, Hanlun
Li, Xiaoping
Bai, Guanghui
Chen, Jun
Bao, Weimin
Ultra-Sensitive Flexible Tactile Sensor Based on Graphene Film
title Ultra-Sensitive Flexible Tactile Sensor Based on Graphene Film
title_full Ultra-Sensitive Flexible Tactile Sensor Based on Graphene Film
title_fullStr Ultra-Sensitive Flexible Tactile Sensor Based on Graphene Film
title_full_unstemmed Ultra-Sensitive Flexible Tactile Sensor Based on Graphene Film
title_short Ultra-Sensitive Flexible Tactile Sensor Based on Graphene Film
title_sort ultra-sensitive flexible tactile sensor based on graphene film
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6915569/
https://www.ncbi.nlm.nih.gov/pubmed/31661933
http://dx.doi.org/10.3390/mi10110730
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