论文标题
在纸基板上绘制WS2热传感器
Drawing WS2 thermal sensors on paper substrates
论文作者
论文摘要
基于纸张的热感知传感器是通过用铅笔在纸上写入的标准复印机纸上摩擦WS2粉来制造的。分层材料和粗糙的纸表面之间的磨损会侵蚀材料，打破弱的范德华层层中键，从而产生相互连接的血小板膜。 WS2的电阻具有强烈的温度依赖性，就像半导体材料所预期的那样，在该材料中，电荷传输是由于热激活的载体引起的。这种强烈的温度依赖性使纸张支持的WS2设备对温度的微小变化极为敏感。利用了这种精致的热敏感性及其对突然温度变化的快速响应时间，从而证明了在呼吸监测设备中WS2-ON纸热传感器的可用性。
Paper based thermoresistive sensors are fabricated by rubbing WS2 powder against a piece of standard copier paper, like the way a pencil is used to write on paper. The abrasion between the layered material and the rough paper surface erodes the material, breaking the weak van der Waals interlayer bonds, yielding a film of interconnected platelets. The resistance of WS2 presents a strong temperature dependence, as expected for a semiconductor material in which charge transport is due to thermally activated carriers. This strong temperature dependence makes the paper supported WS2 devices extremely sensitive to small changes in temperature. This exquisite thermal sensitivity, and their fast response times to sudden temperature changes, is exploited thereby demonstrating the usability of a WS2-on-paper thermal sensor in a respiration monitoring device.
