Figure 3
From: Thermoelectric Power in Bilayer Graphene Device with Ionic Liquid Gating
Sheet resistance R□ versus bottom gate Vbg at T = 20 K and Vig = −1.5 V.
Blue and red data points are the data taken at T = 20 K after cooling down the device at Vbg = 0 V and +43 V, respectively. The solid black line is the R□ − Vbg curve at T = 220 K, which is above the freezing point of the ionic liquid DEME-TFSI.
