Highly Efficient Single‐Layer Polymer Electrophosphorescent Devices
Highly Efficient Single‐Layer Polymer Electrophosphorescent Devices
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DOI:
10.1002/adma.200305621
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发表时间:
2004-01
影响因子:
29.4
通讯作者:
Xiaohui Yang;Dieter Neher;Dirk Hertel;T. K. Däubler
中科院分区:
文献类型:
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作者:
Xiaohui Yang;Dieter Neher;Dirk Hertel;T. K. Däubler
A commercially available Ir complexhas been employed for the preparation of highly efficient (see Figure) single‐layer phosphorescent polymer light‐emitting diodes by use of appropriate thermal treatment and proper adjustment of the layer composition. These devices exhibit essentially no dependence of the driving field on the concentration of the Ir complex, suggesting that the build‐up of space‐charge in the layer is insignificant.