Transparent Inverted Organic Light-Emitting Diodes with a Tungsten Oxide Buffer Layer

被引:164
作者
Meyer, Jens [1 ]
Winkler, Thomas [1 ]
Hamwi, Sami [1 ]
Schmale, Stephan [1 ]
Johannes, Hans-Hermann [1 ]
Weimann, Thomas [2 ]
Hinze, Peter [2 ]
Kowlasky, Wolfgang [1 ]
Riedl, Thomas [1 ]
机构
[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst High Frequency Technol, D-38106 Braunschweig, Germany
[2] PTB, D-38116 Braunschweig, Germany
关键词
D O I
10.1002/adma.200800949
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Highly efficient transparent OLEDs are demonstrated. A novel WO3 buffer layer protects the organics during the sputter deposition of the top ITO electrode. L-J-V and SIMS analysis yield optimized devices with a 60 nm thick WO3 layer. Very high efficiencies of 38cdA(-1) and 30 lm W-1 at 100 cd m(-2) are obtained. At the same time the transmittance throughout the visible part of the spectrum exceeds 75%.
引用
收藏
页码:3839 / +
页数:6
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