On the quantum efficiency of InGaN light emitting diodes: Effects of active layer design, electron cooler, and electron blocking layer

2011 ◽  
Vol 208 (12) ◽  
pp. 2907-2912 ◽  
Author(s):  
X. Li ◽  
F. Zhang ◽  
S. Okur ◽  
V. Avrutin ◽  
S. J. Liu ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Active Layer ◽  
Light Emitting Diodes ◽  
Blocking Layer ◽  
Electron Blocking Layer ◽  
Electron Cooler ◽  
Light Emitting

Influence of the Electron Blocking Layer on the Performance of Multilayer White Organic Light-Emitting Diodes

2012 ◽  
Vol 1402 ◽  
Author(s):  
Caroline Weichsel ◽  
Sebastian Reineke ◽  
Björn Lüssem ◽  
Karl Leo
Keyword(s):  
Electrical Properties ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Carrier Transport ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Blocking Layer ◽  
Electron Blocking Layer ◽  
Light Emitting ◽  
Organic Light

ABSTRACTThe effect of the electron blocking layer on the performance of white organic light-emitting diodes is studied. A variation of the material influences not only the carrier transport, but also the light distribution from the different emitters. Highest external quantum efficiency is reached for the material with the worst electrical properties, while highest luminous efficacy is obtained for the material with the best transport characteristics.

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