具有 Ag/Ge/Ag 阴极的角度稳定的 RGBW 顶发射有机发光器件。

Angle-stable RGBW top-emitting organic light-emitting devices with Ag/Ge/Ag cathode.

机构信息

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China.

出版信息

Opt Lett. 2013 May 15;38(10):1742-4. doi: 10.1364/OL.38.001742.

DOI:10.1364/OL.38.001742

PMID:23938930

Abstract

Ag/Ge/Ag (AGA) is investigated as a transparent cathode for top-emitting organic light-emitting devices (TEOLEDs). TEOLEDs of different colors with excellent performances can be gained by simply adopting a corresponding emitting layer, without changing the thickness of the device and cathode. Especially, the blue and white TEOLEDs exhibit high efficiency as well as the bottom OLEDs and show an excellently angle-stable characteristic. The white TEOLED exhibits a maximum current efficiency of 12.4 cd/A, and the CIE coordinates at 6 V only shift by (0.048, 0.046) from 0° to 60°. It can be attributed to the less angle-dependent cavity emission of the TEOLED with AGA cathode.

摘要

Ag/Ge/Ag（AGA）被研究作为顶发射有机发光器件（TEOLEDs）的透明阴极。通过简单地采用相应的发射层，而不改变器件和阴极的厚度，就可以获得具有优异性能的不同颜色的 TEOLEDs。特别是，蓝色和白色 TEOLEDs 表现出与底 OLEDs 相当的高效率，并表现出极好的角度稳定性。白色 TEOLED 在 6 V 时的最大电流效率为 12.4 cd/A，CIE 坐标仅从 0°到 60°偏移（0.048，0.046）。这可以归因于具有 AGA 阴极的 TEOLED 较少的角度相关腔发射。