电荷平衡对高效蓝色磷光有机发光二极管的影响。

Effect of the charge balance on high-efficiency blue-phosphorescent organic light-emitting diodes.

出版信息

ACS Appl Mater Interfaces. 2009 Jun;1(6):1169-72. doi: 10.1021/am900228b.

PMID:20355909

Abstract

The charge balance in blue-phosphorescent devices was studied using single-carrier devices, and the results show that the transport is highly hole dominant. The effect of the charge balance on the device performance was further demonstrated using different electron-transport materials with different electron mobilities. By optimization of the charge balance, a maximum current efficiency of 60 Cd A(-1) at a luminance of 500 cd m(-2) was achieved.

摘要

研究了蓝磷光器件中的电荷平衡，结果表明传输过程主要为空穴主导。使用具有不同电子迁移率的不同电子传输材料进一步证明了电荷平衡对器件性能的影响。通过优化电荷平衡，在亮度为 500 cd/m²时实现了 60 Cd A⁻¹ 的最大电流效率。