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  4. A high performance inverted organic light emitting diode using an electron transporting material with low energy barrier for electron injection
 
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A high performance inverted organic light emitting diode using an electron transporting material with low energy barrier for electron injection

Journal
Organic Electronics: physics, materials, applications
Journal Volume
12
Journal Issue
11
Pages
1763-1767
Date Issued
2011
Author(s)
CHIH-I WU  
Lee, J.-H.
Wang, P.-S.
Park, H.-D.
Wu, C.-I.
Kim, J.-J.
CHIH-I WU  
DOI
10.1016/j.orgel.2011.07.015
URI
http://www.scopus.com/inward/record.url?eid=2-s2.0-80051603070&partnerID=MN8TOARS
http://scholars.lib.ntu.edu.tw/handle/123456789/365470
Abstract
A high performance inverted green emission organic light emitting diode with a maximum external quantum efficiency of 20% and a maximum power efficiency of 80 lm/W was realized by properly selecting an electron transporting material to have no energy barrier for electron injection between the n-doped electron transporting layer (n-ETL) and the ETL. Based on the energy levels and the current density-voltage characteristics of electron only devices, we demonstrate that the interface between an n-ETL and an ETL even in homo-junction is as important as the interface between the cathode and the n-ETL for efficient electron injection into an emitting layer. © 2011 Elsevier B.V. All rights reserved.
Subjects
Electron injection; Flexible OLED; Inverted organic light emitting diodes; n-Doped/undoped organic semiconductor junction
SDGs

[SDGs]SDG7

Other Subjects
Doping (additives); Electron injection; Electrons; Energy barriers; Energy efficiency; Semiconductor diodes; Semiconductor junctions; Current density-voltage characteristics; Efficient electron injection; Electron transporting layer; Electron transporting materials; External quantum efficiency; Flexible OLED; Green emissions; N-doped; Organic light emitting diodes (OLED)
Type
journal article

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