Low-Power and Eco-Friendly Temperature Sensor Based on Gelatin Nanocomposite.

ABSTRACT: An environmentally-friendly temperature sensor has been fabricated by using a low-cost water-processable nanocomposite material based on gelatin and graphene. The temperature dependence of the electrochemical properties has been investigated by using cyclic voltammetry, chronopotentiometry and impedance spectroscopy measurements. The simple symmetric device, composed of a sandwich structure between two metal foils and a printable graphene-gelatin blend, exhibits a dependence on the open-circuit voltage in a range between 260 and 310 K. Additionally, at subzero temperature, the device is able to detect the ice/frost formation. The thermally-induced phenomena occur at the electrode/gel interface with a bias current of a few tens of μA. The occurrence of dissociation reactions within the sens

SUBMITTER: Landi G 

PROVIDER: S-EPMC9268468 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature