Studies on Carrier Distribution and Measurement of Water Vapor Permeation Rate in Organic Light-Emitting Devices
Date Issued
2006
Date
2006
Author(s)
Hsiao, Chih-Hung
DOI
en-US
Abstract
In this thesis, we had measured the spatial recombination-rate distribution of a mixed-emitter (ME) organic light-emitting device (OLED) by inserting a red-dopant at different positions of the emitting layer (EML) as a probe. The approach of thin doped-layer to the maximum recombination-rate position generated a strong red emission. In the meantime, the electrical current increases by 8.12 times at 8V due to the higher recombination coefficient of the dopant than the matrix.
Also, we designed the white OLEDs (WOLEDs) based on the co-doped technique. Consequently, a WOLED with higher power efficiency of 6.2 lm/W has been demonstrated.
In the final part of my experiment, the simple and useful water vapor permeation rate measurement (WVPR) system is developed to detect the WVPR of passivation layer on flexible substrate.
Subjects
有機發光二極體
透水率
organic light-emitting devices
water vapor permeation rate
Type
thesis
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