Il Lee Seung, Yun Geum Jae, Kim Jin Wook, Hanta Gregory, Liang Kunyu, Kojvic Lazar, Hui Lok Shu, Turak Ayse, Kim Woo Young
Department of Electronic Display Engineering, Hoseo University, Asan, 31499, South Korea.
Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
Sci Rep. 2019 Feb 20;9(1):2411. doi: 10.1038/s41598-019-39451-4.
Blue phosphorescent organic light-emitting diodes (PHOLEDs) were fabricated with tin oxide (SnO) nano-particles (NPs) deposited at the ITO anode to improve their electrical and optical performances. SnO NPs helped ITO to increase the work function enhancing hole injection capability. Charge balance of the device was achieved using p- and n-type mixed host materials in emissive layer and the devices' luminance and maximum external quantum efficiency (EQE) increased about nearly 30%. Tuning the work function using solution processed NPs allows rapid optimization of device efficiency.
通过在氧化铟锡（ITO）阳极沉积氧化锡（SnO）纳米颗粒（NPs）制备了蓝色磷光有机发光二极管（PHOLED），以改善其电学和光学性能。SnO纳米颗粒有助于ITO提高功函数，增强空穴注入能力。通过在发光层中使用p型和n型混合主体材料实现了器件的电荷平衡，器件的亮度和最大外量子效率（EQE）提高了近30%。使用溶液处理的纳米颗粒调节功函数可快速优化器件效率。
