Figure 5: High-frequency (40 kHz) performance of the AC-OEL devices with 100 nm ZnO gate and 100 nm P(VDF-TrFE-CFE) insulator, and AC-OLED.
From: Achieving High Performance in AC-Field Driven Organic Light Sources
(a) RMS current density as function of RMS voltage. (b) Luminance as function of RMS voltage. (c) Luminance as function of frequency. (d–f) The carrier transportation mechanisms of AC-OEL devices with ZnO gate and P(VDF-TrFE-CFE) insulator, and AC-OLED. (g) Power efficiency plot as function of luminance. Inset shows the phase angle characteristics. (h) Luminance versus RMS current density characteristics of the AC-OEL devices with ZnO gate and P(VDF-TrFE-CFE) insulator, and AC-OLED while an increasing DC voltage offset are added to AC driving voltage. 7.1 V and 4.2 V of DC voltages are added to AC voltages when AC-OLED and ZnO device reach the maximum luminance respectively.
