柠檬酸钾电子注入层对有机电致发光器件的影响(英文)  

Effect of Potassium Citrate as Electron Injection Material on Organic Light Emitting Diodes

作　　者：赵建伟[1] 高靖欣[1] 李佳[1] 

机构地区：[1]北京交通大学发光与光信息教育部重点实验室光电子技术研究所,北京100044

出　　处：《发光学报》2012年第4期408-411,共4页Chinese Journal of Luminescence

基　　金：国家自然科学基金(50972007);集成光电子国家重点实验室开放基金

摘　　要：使用柠檬酸钾(C6H5K3O7)作为电子注入材料,制备了多层有机电致发光器件。当柠檬酸钾阴极修饰层厚度为0.5 nm时,得到3.6 cd/A的发光效率,高于0.5 nm LiF作阴极修饰层时的发光效率(2.5 cd/A)。器件的开启电压相比0.5 nm LiF作阴极修饰的器件降低了0.5 V。实验结果表明,柠檬酸钾(C6H5K3O7)是一种良好的电子注入材料。The multilayer organic light-emitting diodes （OLEDs） using potassium citrate （C6HsK307 ） as the electron-injection material have been fabricated. The electroluminescenee （EL） efficiency of 3.6 cd/A was obtained by inserting 0.5-nm-thick C6H5 K3 O7 as electron injecting layer, which is higher than that of 2.5 cd/A in reference device with 0.5-nm-thick LiF. The turn-on vohage was decreased 0.5 V compared with the reference device with 0.5-nm-thiek LiF. The results demonstrated that C6H5 K3O7 is a promising electron injection material.

关 键 词：有机发光二极管 柠檬酸钾 电子注入层 

分 类 号：O482.31[理学—固体物理]