Color-tunable electroluminescence from white organic light-emitting devices through coupled surface plasmons
Color-tunable electroluminescence from white organic light-emitting devices through coupled surface plasmons
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DOI：
10.1063/1.2645149
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发表时间：
2007-02
影响因子：
4
通讯作者：
Jing Feng;T. Okamoto;J. Simonen;S. Kawata
中科院分区：
文献类型：
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作者：
Jing Feng;T. Okamoto;J. Simonen;S. Kawata
作者报道了通过金属/绝缘体/金属（MIM）结构中的表面等离子体激元耦合，从白色有机发光器件（WOLED）中获得颜色可调的电致发光。MIM结构通过在WOLED的Ag阴极上沉积Ag和2，9-二甲基-4，7-二苯基-1，10-邻菲咯啉（BCP）薄膜来制备。通过MIM结构的透射波长取决于中间BCP层的厚度，并且可以在可见光范围内进行调谐。因此，WOLED的宽带发射被选择性地透射，并且获得颜色可调谐的EL发射。当BCP层厚度分别为70、100和130 nm时，观察到蓝光、绿色和红光发射。
The authors report color-tunable electroluminescence from white organic light-emitting devices (WOLEDs) through coupling of surface plasmons in a metal/insulator/metal (MIM) structure. The MIM structure was fabricated by depositing Ag and 2, 9-dimethyl-4, 7-diphenyl-1, 10-phenanthroline (BCP) films on the Ag cathode of a WOLED. The transmission wavelength through the MIM structure depends on the thickness of the middle BCP layer and can be tuned in the visible range. Therefore, the broadband emission from WOLEDs is selectively transmitted, and color-tunable EL emission was obtained. Blue, green, and red light emissions were observed when the BCP layer thicknesses are 70, 100, and 130nm, respectively.