Fig. 2: Volatile receptor behaviour.
From: An organic electrochemical transistor for multi-modal sensing, memory and processing
a, Schematic of a cv-OECT acting as a volatile multi-sensory receptor. b, Transfer curves and related transconductance of ion-gel-gated v-OECT annealed at various temperatures (pink, 200 °C; purple, 150 °C; blue, 100 °C; black, as-cast film); transfer curves (inset) with IDS plotted on a logarithmic axis show decent SS and on/off ratio (L = 40 nm and W = 100 μm, which are similar hereafter). c, Volume capacitance and normalized operando mobility of v-OECT and p-OECT (representative data from n = 3 independent devices, presented as mean values ± s.d.). d, Stability of cv-OECT tested in the ambient environment; high on/off ratio and switching speed can be maintained during the cycles. A close-up shows high-speed switching of cv-OECT operated in the volatile mode. e, Comparison of SS at around 0 V and on/off ratios for different electrolyte-gated transistors. f, Recorded IDS as a function of time on stimulating Mimosa pudica by light from a light-emitting diode and paired touch, and the paired-pulse facilitation (PPF) behaviour was captured. g, Circuit diagram and measurement setup of ECG/EMG recording using flexible cv-OECTs with ultralow power supply. h, Sample trace of the acquired ECG/EMG signals.
