Design principles for highly efficient organic light-emitting diodes

作者：Ingram Grayson L^*; Lu Zheng Hong

来源：Journal of Photonics for Energy, 2014, 4(1): 040993.

DOI：10.1117/1.JPE.4.040993

• organic light-emitting diodes
• excitons
• electroluminescence
• energy transfer

Organic light-emitting diodes (OLEDs) show potential as the next-generation solid-state lighting technology. A major barrier to widespread adoption at this point is the efficiency droop that occurs for OLEDs at practical brightness (similar to 5000 cd/m(2)) levels necessary for general lighting. We highlight recent progress in highly efficient OLEDs at high brightness, where improvements are made by managing excitons in these devices through rational device design. General design principles for both white and monochrome OLEDs are discussed based on recent device architectures that have been successfully implemented. We expect that an improved understanding of exciton dynamics in OLEDs in combination with innovative device design will drive future development. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

• 出版日期2014-8-6