Fig. 4: Estimation of the temperature of the electron gas heated by radiation from dIb/dT and photocurrent measurements. | npj 2D Materials and Applications

Fig. 4: Estimation of the temperature of the electron gas heated by radiation from dIb/dT and photocurrent measurements.

From: Infrared photodetection in graphene-based heterostructures: bolometric and thermoelectric effects at the tunneling barrier

Fig. 4

a dIb/dT and photocurrent as a function of bias voltage measured at Vgate = 0, b as a function of gate voltage at small bias Vb = 5 mV. Electron temperature rise is estimated to be about 8 K. c and d Theoretically calculated photocurrent and dIb/dT for c Vgate = 0 and d Vb = 5 mV for δTt = 1.2δTb. e Photocurrent dependence on Vb at elevated temperatures.

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