Real-time monitoring of temperatures over extensive free-form surfaces of precision machines, smart products, and human bodies with a high resolution can provide invaluable information for smart manufacturing, Internet-of-Things, and advanced healthcare. However, traditional rigid thermistors could not be conformally attached on arbitrarily curved surfaces. In this study, a high-resolution flexible graphene thermistor is demonstrated by transforming wood into laser-induced-graphene via ultrafast laser pulses and subsequent transfer to flexible substrates. This thermistor provides a 16-times higher resolution than the state-of-the-art counterparts which was applied to precise temperature monitoring of an electric motor, glass cup, and human hand.

以高分辨率实时监测精密机器、智能产品和人体的广泛自由曲面上的温度，可以为智能制造、物联网和先进的医疗保健提供宝贵的信息。然而，传统的刚性热敏电阻不能共形地附着在任意弯曲的表面上。在这项研究中，通过超快激光脉冲将木材转化为激光诱导石墨烯并随后转移到柔性基板上，证明了高分辨率柔性石墨烯热敏电阻。该热敏电阻的分辨率是最先进的同类产品的 16 倍，该产品应用于电动机、玻璃杯和人手的精确温度监测。