Fig. 3: Decoupled sensing of simultaneously applied temperature gradient and strain with the stretchable thermoelectric sensor based on the porous graphene foam. | Nature Communications

Fig. 3: Decoupled sensing of simultaneously applied temperature gradient and strain with the stretchable thermoelectric sensor based on the porous graphene foam.

From: Thermoelectric porous laser-induced graphene-based strain-temperature decoupling and self-powered sensing

Fig. 3: Decoupled sensing of simultaneously applied temperature gradient and strain with the stretchable thermoelectric sensor based on the porous graphene foam.The alternative text for this image may have been generated using AI.

a Measured I−V curves under different temperature gradients (0, 3, 6, 9, and 12 °C), and strain levels (5% and 15%). Thermoelectric voltage as a function of (b) time (strain of 0, 15, 25, 35, and 45%) and (c) strain for different temperature gradients (3, 6, 9, and 12 °C). The output voltage fluctuation at 3, 6, 9, and 12°C is 9.1%, 9.8%, 6.5%, and 4.0% respectively, as the strain increases from 0% to 45%. The standard deviation (SD) is shown as error bars (n = 3). d Normalized relative resistance and current changes with the temperature gradient for different strain levels (15, 25, 35, and 45%). Thermoelectric current as a function of (e) time (10% stretching) and (f) strain for temperature gradients of 0, 3, 6, 9, and 12 °C, with log-linear fit shown in the inset.

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