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A Flexible Temperature Sensor Array with Polyaniline/Graphene–Polyvinyl Butyral Thin Film

Thermal-resistance temperature sensors generally employ temperature-sensitive materials as active layers, which are always deposited on a flexible substrate to improve flexibility. Such a temperature sensor is usually integrated in wearable devices with other sensors, such as pressure sensors and st...

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Detalles Bibliográficos
Autores principales: Pan, Jin, Liu, Shiyu, Zhang, Hongzhou, Lu, Jiangang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6806147/
https://www.ncbi.nlm.nih.gov/pubmed/31547549
http://dx.doi.org/10.3390/s19194105
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author Pan, Jin
Liu, Shiyu
Zhang, Hongzhou
Lu, Jiangang
author_facet Pan, Jin
Liu, Shiyu
Zhang, Hongzhou
Lu, Jiangang
author_sort Pan, Jin
collection PubMed
description Thermal-resistance temperature sensors generally employ temperature-sensitive materials as active layers, which are always deposited on a flexible substrate to improve flexibility. Such a temperature sensor is usually integrated in wearable devices with other sensors, such as pressure sensors and stretchable sensors. In prior works, the temperature and pressure sensors are usually located in different layers in a multifunction sensor, which results in a complicated fabrication process, as well as a large thickness of devices. Meanwhile, many temperature sensors are based on large areas of non-transparent materials, leading to difficulties in integrating display applications. In this paper, we demonstrate a flexible temperature sensor based on polyaniline/graphene (GPANI)–polyvinyl butyral (PVB) thin film and indium tin oxides (ITO)- polyethylene terephthalate (PET) substrates. The GPANI particles embedded in PVB film not only contribute to temperature detection, but also response to external pressures, due to weak deformations. In addition, the thin composite film (2.7 μm) highly improved the transparency. By optimizing the device structure, the sensor integrates temperature and pressure detection into one single layer, which shows a wide temperature range of 25–80 °C, a pressure range of 0–30 kPa, and a high transparency (>80%). The temperature sensor offers great potential for applications in emerging wearable devices and electronic skins.
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spelling pubmed-68061472019-11-07 A Flexible Temperature Sensor Array with Polyaniline/Graphene–Polyvinyl Butyral Thin Film Pan, Jin Liu, Shiyu Zhang, Hongzhou Lu, Jiangang Sensors (Basel) Article Thermal-resistance temperature sensors generally employ temperature-sensitive materials as active layers, which are always deposited on a flexible substrate to improve flexibility. Such a temperature sensor is usually integrated in wearable devices with other sensors, such as pressure sensors and stretchable sensors. In prior works, the temperature and pressure sensors are usually located in different layers in a multifunction sensor, which results in a complicated fabrication process, as well as a large thickness of devices. Meanwhile, many temperature sensors are based on large areas of non-transparent materials, leading to difficulties in integrating display applications. In this paper, we demonstrate a flexible temperature sensor based on polyaniline/graphene (GPANI)–polyvinyl butyral (PVB) thin film and indium tin oxides (ITO)- polyethylene terephthalate (PET) substrates. The GPANI particles embedded in PVB film not only contribute to temperature detection, but also response to external pressures, due to weak deformations. In addition, the thin composite film (2.7 μm) highly improved the transparency. By optimizing the device structure, the sensor integrates temperature and pressure detection into one single layer, which shows a wide temperature range of 25–80 °C, a pressure range of 0–30 kPa, and a high transparency (>80%). The temperature sensor offers great potential for applications in emerging wearable devices and electronic skins. MDPI 2019-09-23 /pmc/articles/PMC6806147/ /pubmed/31547549 http://dx.doi.org/10.3390/s19194105 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
Pan, Jin
Liu, Shiyu
Zhang, Hongzhou
Lu, Jiangang
A Flexible Temperature Sensor Array with Polyaniline/Graphene–Polyvinyl Butyral Thin Film
title A Flexible Temperature Sensor Array with Polyaniline/Graphene–Polyvinyl Butyral Thin Film
title_full A Flexible Temperature Sensor Array with Polyaniline/Graphene–Polyvinyl Butyral Thin Film
title_fullStr A Flexible Temperature Sensor Array with Polyaniline/Graphene–Polyvinyl Butyral Thin Film
title_full_unstemmed A Flexible Temperature Sensor Array with Polyaniline/Graphene–Polyvinyl Butyral Thin Film
title_short A Flexible Temperature Sensor Array with Polyaniline/Graphene–Polyvinyl Butyral Thin Film
title_sort flexible temperature sensor array with polyaniline/graphene–polyvinyl butyral thin film
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6806147/
https://www.ncbi.nlm.nih.gov/pubmed/31547549
http://dx.doi.org/10.3390/s19194105
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