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阴极材料对聚合物发光二极管特性的影响 被引量：1

Impact of the Cathode Materials on the Performance of Polymer Light-emitting Devices
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摘要 报道了基于聚(9,9 二辛基芴 4,7 二噻基苯并二唑)(PDOF DBT,m(DOF):m(DBT)=85:15)的双层聚合物发光二极管(PLEDs)在使用碱金属、碱土金属和绝缘材料为阴极时表现的各种特性.当以厚度为3nm左右的Ba作为阴极时,器件表现出较好的性能:外量子效率为1.6%,最大的发光亮度接近4000cd m2.结果表明PDOF DBT与这种阴极的交界面具有较好的能级匹配以及电荷注入平衡. Double-layer polymer light-emitting devices (PLEDs),based on poly(9,9-dioctylfluoren-4,7-di-2-thienyl-2,1,3-benzothiadiazole)(PDOF-DBT,m(DOF):m(DBF)=85:15),using alkaline metals, alkaline earth metals and insulated materials as the cathode,show different characteristics. Device with Ba(a thickness of about 3nm) as cathode shows better performance:the external quantum efficiency is 1.6%, and the highest light intensity is close to 4000cd/m^2.The result demonstrates the interface between PDOF-DBT and this kind cathode with good energetic contact, and electron-injecting equilibrium.
作者 许怡赦 陈国鼎 周金运
机构地区 广东工业大学应用物理系
出处 《广东工业大学学报》 CAS 2004年第2期12-15,共4页 Journal of Guangdong University of Technology
基金 广东工业大学青年基金资助项目(022031)
关键词 聚合物 发光二极管 阴极材料 碱土金属 绝缘材料 polyfluorene PLEDs cathode double layer
分类号 TN311 [电子电信—物理电子学]
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参考文献10

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二级参考文献13

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广东工业大学学报
2004年 第2期

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