Figure 5

From: Graphene Quantum Dots Interfaced with Single Bacterial Spore for Bio-Electromechanical Devices: A Graphene Cytobot

Figure 5

(a) Current–voltage (IV) behavior of a spore-pLGQD hybrid device, where the voltage increases from 0 to 0.35 V with a step size of 5 mV (at ~80 K). The differential current () curve represents Coulomb blockade effect in the device. The inset shows the normalized conductivity for one cycle from Fg. 2c at different voltages. (b) The influence of temperature on the electrical currents in the percolating-pLGQD device was studied. The current–voltage (IV) curves were obtained at 80 K, 100, 140, 180 and 200 K. (Top-Inset) The decrease in conductivity with decrease in temperature was also plotted with the Arrhenius fit (red curve) to obtain an activation energy of 35 meV (supplementary document).