Coplanar Electrodes Color-Tunable Ac-Oleds with Wide Operating Windows

• DOI: 10.2139/ssrn.4165522
• Publication Date: 2022-07-19T15:18:42Z
• Authors: Hong Meng; Junwu Bai; Qian Wang; Xing Xing; Junpeng Ji; Muhammad Umair Ali; Ming Liu; Jingsheng Miao; Hongming Chen; Chaoyi Yan; Xiuru Xu; Kwang-Fu Clifton ...
• Keywords: 02 engineering and technology; 0210 nano-technology

Alternating current-driven organic light-emitting diodes (AC-OLEDs) exhibit great potential for next-generation lighting and display applications owing to their advantage of direct integration into AC-based household electric systems, nevertheless, low performance with high turn-on voltage inability light emission in the entire cycle AC signal remain major bottlenecks further development. Herein, AC-OLEDs coplanar electrodes (cpAC-OLED) are demonstrated, this new type AC-OLED architecture work a broad frequency range, from 20V/50Hz 200V/10kHz various optical feedback. The emit whole applied signal, manifests dependent color tunability. Moreover, these devices could be efficiently driven by commonly used power supply (220V/50Hz, 110V/50Hz) without any additional back-end electronics. working mechanism developed cpAC-OLEDs based on capacitor model is discussed. We anticipate that would accelerate development highly efficient color-tunable AC-driven sources.