掺杂有机半导体的电传导特性及其在光电器件中的应用

项目名称： 掺杂有机半导体的电传导特性及其在光电器件中的应用

项目编号： No.61307036

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 王照奎

作者单位： 苏州大学

项目金额： 28万元

中文摘要： 有机半导体材料以其原料易得、廉价、重量轻等优点，在现代光电子器件中得到了广泛的应用。但由于有机半导体内分子间微弱的范德华力，电荷在分子间的传递要通过"跳跃"的方式完成，导致其相对较弱的电导特性。通过掺杂，可增强有机半导体材料的电学特性、减少有机层与电极的接触势垒、操控界面处能级的匹配等。过去国内外关于掺杂有机半导体材料及器件的研究，多集中于器件性能的提高，关于其物性以及相应物理机制的研究则相对缓慢。本项目拟对掺杂有机小分子材料展开物性方面的基础研究，通过研究不同类型有机客体、无机客体p型掺杂对有机半导体材料的电子结构、载流子、电荷的传输特性、金属/有机、有机/有机界面化学的影响状况等，力求在对比研究的基础上探索有机掺杂与无机掺杂机理上的本质不同，理解有机半导体掺杂的一些基本机制，为进一步提高有机光电器件的性能提供思路和依据。

中文关键词： 有机半导体；掺杂；OLEDs；太阳电池；

英文摘要： Organic semiconductor, as an alternative for inorganic one, has been broadly used in the field of modern photo electronic devices owing to their many advantages such as easy synthesizing, cheap cost, light weight etc. However, the electric properties such as carrier mobility in organic semiconductors is relative weak owing to the charge hopping transport means between molecules via Van der Waals and dipole-dipole interactions. By controlled and suitable doping in organic semiconductors, it is possible for realization of improved electric properties, reduced contact barrier at organic/metal interface, and even controlled energy level alignments between different materials, which is desirable for improving the performance of organic electronic devices. Past studies in the field of doped-organic semiconductors mainly focus on the improvement of device performance, and the studies about the physical properties in doped-organic semiconductors and physical mechanisms in doped-organic electronics devices are few and still developing. This project will carry out an investigation of the physical properties in doped small molecular organic semiconductors. In details, we will mainly investigate the diffenerce of doping mechanisms between the inorganic and organic p-doants via comparing their doping effects on the changes o

英文关键词： Organic semiconductors；Doping；OLEDs；Solar cells；