有机电致发光器件中自旋输运的界面调控

项目名称： 有机电致发光器件中自旋输运的界面调控

项目编号： No.61205033

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 信息四处

项目作者： 张丹丹

作者单位： 苏州大学

项目金额： 31万元

中文摘要： 在有机自旋电子学器件飞速发展，有机电致发光器件（OLED）显示及照明技术面临突破的背景下，有机自旋OLED表现出巨大的发展潜力和应用前景。然而OLED中自旋极化输运的一些影响机制仍未得到明确系统的分析研究。本项目从有机发光动力学的影响机制出发，将有机自旋电子学与OLED界面调控技术相结合，通过对磁性材料与有机半导体之间的作用和界面分析来调控OLED的自旋极化注入。具体研究内容包括：（1）磁性材料/有机半导体界面注入势垒的调控机制；（2）磁性材料与有机半导体分子之间的相互作用机制；（3）磁性材料的生长条件对自旋极化注入机理的影响；（4）高自旋极化注入OLED器件的实现。通过本项目的研究，掌握磁性材料的生长机制对其磁性以及界面表面的影响关系；掌握如何通过材料的表面修饰和界面中间层的引入来调控界面注入势垒，最终实现对OLED自旋极化注入的调控，并设计合理的器件结构制备高自旋极化注入的OLED.

中文关键词： 有机电致发光器件；界面调控；磁性纳米粒子；自旋极化注入；

英文摘要： With the rapid development of organic spintronics devices, there is a urgent call for the breakthrough in both flat panel display and solid-state lighting of organic light emitting devices (OLEDs). Typically, the spin OLEDs show a great potential for development and application prospects. However, research on the mechanism and influencing factors of spin polarized injection is still rare. Based on the kinetics mechanism of OLEDs, combination the interface physics with organic spintronics, we can achieve highly efficient spin polarized injection by analyzing the interface between the magnetic material and organic semiconductor. The specific contents are as follows: i, the interaction and regulation mechanism of the magnetic materials/organic semiconductor interface; ii, the influence of the magnetic material growth conditions on the spin polarized injection mechanism; iii, the fabrication of OLEDs with highly spin polarized injection. Based on the thorough investigation on the relation between the growth mechanism, surface/interface modification of the magnetic material and the effect of spin polarized injection, we could fabricate OLEDs with highly spin polarized injection by tuning the interface barrier.

英文关键词： Organic light emitting devices；interface regulate；magnetic nanoparticles；spin injection；