Green fabrication and performance investigation of flexible temperature sensor based on GESM/rGO composite

Goose eggshell membrane (GESM) was taken as a flexible base material, residual egg white taken as a binder, and rGO taken as the thermo-sensitive component. Therefore, a high-sensitivity flexible temperature sensor is constructed by a simple coating method. This sensor displays an excellent flexibility. Its tensile strength is got an enhancement of 13.4% when compared with original GESM. This device gives a high temperature coefficient of resistance ( TCR ) which is −1.09%/°C, good linear property ( R 2  = 0.985), and a quick response time of 6–10 s. This sensor can keep its steady working condition after ten cold-heat change circles (25 and 46 °C), and it also can do this under repeated bendings with many different angles. This sensor holds significant potential for temperature monitoring applications.