Abstract
The development of a sensitive flexible wearable temperature sensor has extraordinary significance in the field of human vital signs detection. Herein, we demonstrate a flexible temperature sensor (FTS) fitting on human skin based on non-woven fabric, and it has been systematically characterized and tested for performance. The resistor-type FTS integrated sodium alginate with graphene, behaved as negative temperature coefficient feature and exhibited excellent sensing performance of good sensitivity (TCR = − 1.5 °C−1), high accuracy of 0.1 °C, short response time (26.3 s), high stability and repeatability at the temperature range of 20.0–45.0 °C. Specially, the FTS eliminated strain and humidity interference, so that can be attached to the human body to detect skin temperature changes continuously and stably.
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