High brightness and efficiency blue light-emitting polymer diodes
High brightness and efficiency blue light-emitting polymer diodes
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DOI：
10.1063/1.121878
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发表时间：
1998-07
影响因子：
4
通讯作者：
Alan W. Grice;D. Bradley;M. Bernius;M. Inbasekaran;Weishi Wu;E. Woo
中科院分区：
文献类型：
--
作者：
Alan W. Grice;D. Bradley;M. Bernius;M. Inbasekaran;Weishi Wu;E. Woo
在高亮度下工作的聚合物发光二极管显示出高效的蓝色电致发光，峰值在436 nm。使用二辛基取代的聚芴作为与聚合物三苯基二胺空穴传输层组合的发射层。当电流密度为150 mA/cm 2，偏压为20 V时，发光亮度达到600 cd/m2，效率为0.25 cd/A，亮度为0.04 lm/W。这些值在临界发射层厚度处被优化。
Efficient blue electroluminescence, peaked at 436 nm, is demonstrated from polymer light-emitting diodes operating at high brightness. A dioctyl-substituted polyfluorene was used as the emissive layer in combination with a polymeric triphenyldiamine hole transport layer. The luminance reaches 600 cd/m2 at a current density of 150 mA/cm2 for a bias voltage of 20 V, corresponding to an efficiency of 0.25 cd/A and a luminosity of 0.04 lm/W. These values are optimized at a critical emissive layer thickness.