发光学报2012，Vol.33Issue(9)：954-959,6.DOI:10.3788/fgxb20123309.0954
方波驱动法测定Alq3的电子迁移率
Measurement of The Electron Mobility of Tris (8-quinolinolato) Aluminum Driven by Square Waves
摘要
Abstract
The electroluminescence of tris(8-quinolinolato) aluminum (Alq3) has been observed in organic light emitting diodes under a kind of non-sinusoidal waveform ( a square wave). During the high period of square wave, the electrons in Alq3 are driven towards the anode, while moved towards the cathode during the following low period of square wave. The electroluminescence of Alq3 vanishes completely from the point where the period of square wave equals twice the transit time of electrons across the Alq3 layer. Thus, the electron mobility of Alq3 can be evaluated, and the obtained results are in good accordance with the reported values. The thickness dependence of the electron mobility for Alq3 is also investigated. We provide a simple, easily accessible method to determine the charge-carrier mobility for organic materials.关键词
方波驱动/迁移率/Alq3/p型掺杂Key words
square wave driving/ mobility/ tris(8-quinolinolato) aluminum/ p-type doping分类
信息技术与安全科学引用本文复制引用
陈磊,李贵芳,陈玉焕,王明霞,闫东航,张吉东,秦大山..方波驱动法测定Alq3的电子迁移率[J].发光学报,2012,33(9):954-959,6.基金项目
国家自然科学基金(50803014) （50803014）
中国科学院长春应用化学研究所高分子物理与化学国家重点实验室开放基金资助项目 （）
