Figure 5. Characterization of the artificial temperature
perception neurons. a) The circuit diagram of the temperature
perception neuron. b) I –V curves of the
VO2 volatile memristor with different temperatures. c)
The temperature dependence of the threshold voltage
(V th) and hold voltage
(V hold) extracted from the I-Vcharacteristic of Figure 5b. d) Oscillation frequency as a function of
load resistance (R L) with different temperatures
from 284 to 306 K. e) Neuronal response of the temperature perception
neuron under the varying temperature with R L of
3.6 kΩ and a constant bias voltage (5 V, 20 μs). The output frequencies
increases from 0.3 to 0.8 MHz as the temperature increases from 284 to
306 K.