Figure 11
From: Role of an external electric field on hybrid halide perovskite CH3NH3PbI3 band gaps
Device for realizing an external electric field. Here, VCC is input voltage obtained by the storage battery charged by the solar battery, L is inductance, ue is rectangular square wave pulse signal which control the duty cycle and regulate magnification, IGBT is crystal oscillator, D is diode, R is resistance, and C is capacitance.
