Inkjet-Printed Human Body Temperature Sensor for Wearable Electronics
Inkjet-Printed Human Body Temperature Sensor for Wearable Electronics
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DOI：
10.1109/access.2019.2949335
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发表时间：
2019-01-01
期刊：
影响因子：
3.9
通讯作者：
Bermak, Amine
中科院分区：
文献类型：
--
作者：
Ali, Shawkat;Khan, Saleem;Bermak, Amine
本文介绍了一种在具有高变形特性的塑料基片上研制的全印刷人体温度传感器。该传感器是在50 μ m厚的Kapton基片上研制的，基片的结构配置为银叉指电极（IDE），通过喷墨材料打印机EMA 2850制作，传感膜以碳黑为基片，通过刮涂法沉积。IDE的叉指距离通过评估传感器的性能来优化，以在0.1-1 mm的近范围内改变手指间距。在28至50摄氏度的温度范围内实现了良好的灵敏度，即0.00375摄氏度-1，响应和恢复时间分别为4秒和8.5秒。还对传感器的耐用性进行了为期50天的评价，并记录了基本电阻的可忽略漂移（1 Ω）。该传感器表现出可弯曲性下降到5毫米，也是其特征在于的化学和电气性能，即电阻变化，表面形态和拉曼位移分析的炭黑。这种可穿戴传感器可以应用于人体上进行连续温度监测，以及用于社会和工业机器人应用的人造皮肤。
This paper presents an all-printed human body temperature sensor developed on a plastic substrate with high deformation characteristics. The sensors are developed on 50 mu m thick Kapton substrate with structural configuration of silver interdigital electrodes (IDEs) fabricated through inkjet material printer DMP 2850 and the sensing film based on carbon black deposited through doctor blade coating. Interdigital distance of the IDEs were optimized by evaluating sensors' performance against changing the fingers spacing within a close range of 0.1-1 mm. Good sensitivity i.e. 0.00375 degrees C-1 is achieved at a temperature range of 28 to 50 degrees C with response and recovery times of 4 and 8.5 sec, respectively. Robustness of the sensor was also evaluated for a period of 50 days and a negligible drift (1 Omega) in the base resistance was recorded. The sensor exhibited bendability down to 5 mm and was also characterized for the chemical and electrical properties i.e. resistance variation, surface morphology and Raman shift analysis of the carbon black. This wearable sensor can potentially be applied on human body for continuous temperature monitoring as well as on the artificial skin for social and industrial robotic applications.