中文摘要：

利用液体基质材料9-（2-ethylhexyl）carbazole（EHCz）掺杂有机染料分子5,6,11,12-tetraphenyl-naphthacene（rubrene）制备了具有液体发光层的有机电致发光器件,其结构为：ITO/PEDOT∶PSS/EH Cz∶rubrene/Cs2CO3/ITO,PEDOT∶PSS和Cs2CO3分别作为空穴注入和电子注入材料。该器件在正向偏压时,得到了液体薄层EHCz∶rubrene的电致发光,通过分析器件的发光光谱,可以确认器件的发光来自电子-空穴在rubrene分子上复合而形成的激子发光。该器件的最大外量子效率和亮度分别达到了0.03%和0.35cd.m-2,还进一步探讨了液体发光层的光致发光及荧光量子效率等特征。

英文摘要：

An organic light-emitting diode（OLED） with a liquid host of 9-（2-ethylhexyl）carbazole（EHCz） doped with a guest dye of 5,6,11,12-tetraphenylnapthacene（rubrene） was demonstrated.Here the poly（3,4-ethylenedioxy thiophene）∶poly（styrenesulphonate）（PEDOT∶PSS） and Cs2CO3 were served as the hole injection material and electron injection material,respectively.The device structure consists of ITO/PEDOT∶PSS/EH Cz∶rubrene/Cs2CO3/ITO.Electroluminescence from rubrene with the highest external quantum efficiency of 0.03% at 0.26 mA·cm-2 was obtained.The photoluminescence（PL） and PL quantum efficiency of the materials were further studied.