Efficient phosphorescent white organic light-emitting devices incorporating blue Iridium complex and multifunctional orange-red Osmium complex
Resource
Organic Electronics, 10(7), 1235-1240
Journal
Organic Electronics
Journal Volume
10
Journal Issue
7
Pages
1235-1240
Date Issued
2009
Date
2009
Author(s)
Chang, Chih-Hao
Lin, You-Heng
Chen, Chung-Chia
Chang, Chih-Kai
Chen, Li-Shiuan
Wu, Wen-Wen
Chi, Yun
Abstract
By using the unique properties of the efficient orange-red phosphorescent osmium complex in combination with an efficient blue phosphorescent Iridium complex, efficient white organic light-emitting devices with forward viewing efficiencies up to (17% photon/electron, 36 cd/A, 28 lm/W) and white organic light-emitting devices with color stability vs. brightness can be implemented. Results show that the osmium complex is a multi-functional material that not only has high emission efficiency, but also possesses the effective hole trapping capability, which is useful for balancing hole/electron transport and controlling the emission zones when doped at appropriate locations of the device. © 2009 Elsevier B.V. All rights reserved.
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Type
journal article
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