Highly efficient and color-tuning electrophosphorescent devices based on CuI complex
Highly efficient and color-tuning electrophosphorescent devices based on CuI complex
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DOI：
10.1063/1.2345826
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发表时间：
2006-09-04
影响因子：
4
通讯作者：
Zhang, Zhiqiang
中科院分区：
文献类型：
--
作者：
Che, Guangbo;Su, Zisheng;Zhang, Zhiqiang
研究了4，4（'）-N，N-'-二咔唑-联苯（DPEphos =二[2-（二苯基膦基）苯基]醚，Dicnq= 6，7-二氰基二吡啶并[2，2-d：2（'），3（'）-f]喹喔啉）掺杂的铜-碘配合物[Cu（DPEphos）（Dicnq）] BF_4的有机电致磷光发光。真空气相沉积技术制造的这些设备的性能是最好的报道，将Cu-I配合物作为发射体的设备。器件的开启电压为4V，最大电流效率为11.3cd/A，峰值亮度为2322 cd/m2。探讨了铜碘配合物有机电致发光器件的磷光工作机理。电致发光的颜色可以从绿黄到橙红区域进行调谐，其较长波长的带尾可以覆盖近红外。(c)2006年，美国物理学会。
Highly efficient electrophosphorescence from organic light-emitting devices based on a Cu-I complex, [Cu(DPEphos)(Dicnq)]BF4 (DPEphos=bis[2-(diphenylphosphino)phenyl]ether and Dicnq=6,7-Dicyanodipyrido[2,2-d:2('),3(')-f] quinoxaline), doped into 4,4(')-N,N-'-dicarbazole-biphenyl is demonstrated. The performances of these devices fabricated by vacuum vapor deposition technique are among the best reported for devices incorporating Cu-I complexes as emitters. A low turn-on voltage of 4 V, a maximum current efficiency up to 11.3 cd/A, and a peak brightness of 2322 cd/m(2) were achieved, respectively. The phosphorescent operating mechanism of organic light-emitting devices based on Cu-I complex was discussed. Electroluminescent colors can be tuned ranging from green-yellow to orange-red region, and its band tail at longer wavelength can cover near infrared. (c) 2006 American Institute of Physics.