Figure 5.

Photobolometric Effect. (a) Temperature-dependent change in current from its room temperature value as a function of gate voltage. Inset: gate voltage characteristic as a function of temperature when cooling down from room temperature. (b) Calculated energy band diagrams for the different cases. (c) Measured photocurrent map as the V_GS and the source–drain voltage (V_DS) vary. (d) Measured responsivities with different input optical powers Pin. (a) Reproduced with permission from [69]. Copyright Nature Publishing Group, 2012. (b–d) reproduced with permission from [73]. Copyright Nature Publishing Group, 2019.