Role of carrier mobility, exciton diffusion, and their interplay for charge balance and improved properties of organic electrophosphorescent device

Authors
Chin, Byung DooLee, Soo-HyeongKim, Jai KyeongLee, Chang Hee
Issue Date
2006
Publisher
SPIE-INT SOC OPTICAL ENGINEERING
Citation
Conference on Organic Light Emitting Materials and Devices X, v.6333
Abstract
In this paper, we demonstrated that controlled charge trapping, both at the emission layer and charge transport layer with energy level alignment, is essential for charge-balanced and effective electrophosphorescent organic light-emitting device (OLED). Conditions for enhanced of efficiency and lifetime of OLED were obtained with graded doping profile at the light-emission layers (varied host-dopant concentration) and different hole (exciton) blocking materials. Conceptual device physics presented in this study can be applied at an initial design of charge-confined, balanced structure of highly efficient electrophosphorescent devices.
ISSN
0277-786X
URI
https://pubs.kist.re.kr/handle/201004/116732
DOI
10.1117/12.680411
Appears in Collections:
KIST Conference Paper > 2006
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE