Pataniya Pratik M, Bhakhar Sanjay A, Tannarana Mohit, Zankat Chetan, Patel Vikas, Solanki G K, Patel K D, Jha Prafulla K, Late Dattatray J, Sumesh C K
Department of Physical Science, P.D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, CHRUSAT, Changa 388421, Gujarat, India.
Department of Physics, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India.
J Colloid Interface Sci. 2021 Feb 15;584:495-504. doi: 10.1016/j.jcis.2020.10.006. Epub 2020 Oct 13.
The advancement of portable and flexible electronics that is integrated with multiple sensing functions has increasingly drawn considerable interest. The fabricated sensors would have the ability to sense multiple deformations like pressing, twisting and trivial vibrations such as pulses of wrist vibrations to mimic human skin. Presently, we implemented an easy, cost-effective and optimized fabrication technique for production of pressure sensors based on MoSe nanosheets coated on cellulose paper. The present sensor exhibits an incorporation of large pressure sensitivity of 18.42 kPa in pressure range 0.001-0.5 kPa, 7.28 kPa in pressure range 1-35 kPa and 2.63 kPa in pressure range 40-100 kPa, working in broad pressure range (from 0.001 to 100 kPa) and long-term stability up to 200 deformation cycles at 2 kPa. The sensor showed excellent response towards the detection of vibrations of machines including cellular phone, compressor, etc. Besides, the sensor shows excellent environmental stability and exhibits immune piezo-resistive response to temperature variation.
集成了多种传感功能的便携式和柔性电子设备的发展越来越引起人们的广泛关注。制造出的传感器应能够感知多种形变，如按压、扭转以及诸如手腕脉搏振动之类的细微振动，以模仿人类皮肤。目前，我们基于涂覆在纤维素纸上的二硒化钼（MoSe）纳米片，实施了一种简便、经济高效且经过优化的制造技术来生产压力传感器。当前的传感器在0.001 - 0.5 kPa压力范围内展现出18.42 kPa的高压力灵敏度，在1 - 35 kPa压力范围内为7.28 kPa，在40 - 100 kPa压力范围内为2.63 kPa，可在宽压力范围（从0.001至100 kPa）工作，并且在2 kPa下具有高达200次变形循环的长期稳定性。该传感器对包括手机、压缩机等在内的机器振动检测表现出优异的响应。此外，该传感器具有出色的环境稳定性，并且对温度变化呈现免疫压阻响应。
