二维有机晶体膜的控制生长、结构表征与性能研究

项目名称： 二维有机晶体膜的控制生长、结构表征与性能研究

项目编号： No.61201105

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电子学与信息系统

项目作者： 江浪

作者单位： 中国科学院化学研究所

项目金额： 28万元

中文摘要： 有机单晶中分子排列长程有序、无晶界、且杂质和缺陷少，因而有机单晶是揭示有机半导体材料的本征性能和获得高迁移率器件的最佳选择。因此，高质量单晶材料在实现高性能有机电子器件和电路方面具有无可比拟的优势。但是，有机单晶普遍以离散的微纳晶形式存在，难以适用于大规模应用需要。而大面积单晶薄膜可以集单晶器件的高性能和薄膜材料易集成性为一体，是实现高性能器件和电路构筑的最佳途径。目前，如何有效制备大面积单晶膜还面临着巨大的挑战，严重影响了高性能有机单晶材料的大规模应用。 申请者拟针对这一难题，通过设计、合成一系列分子间具有二维作用力的有机半导体材料来实现大面积单晶薄膜。进一步表征单晶膜中分子堆积结构，发展高性能单晶薄膜器件，研究其电学性能，探索半导体结构与性能的关系。通过本项目的研究，为二维有机晶体膜的控制生长、结构与性能的关系、本征性能的研究、以及高性能器件、分子器件与电路的构筑和应用打下坚实基。

中文关键词： 有机半导体；单晶；有机场效应晶体管；迁移率；有机电路

英文摘要： Organic crystals have attracted wide attention due to their high quality with minimized concentration of charge traps and perfect structure of absent grain boundaries. Therefore they offer the access to examine the intrinsic transport properties and explore structure-property relationships of organic semiconductors. Moreover, the high quality of organic single-crystal materials also enable us to construct high-performance electrical devices and circuits. For technological large-scale applications, thin single crystalline films are highly desirable than discrete single crystals, which are limited to fabricate separate devices. Difficulties in large area growth of organic single crystalline thin films become one of the main obstacles to extend organic single crystals in electronic applications such as active matrix displays backplanes, radio-frequency identification (RFID) and digital circuits. In this research project, a series of organic semiconductors with two-dimensional intermolecular forces will be designed and synthesized for fabricating large-area single crystalline films. The thickness and area of the films could be manipulated by the experimental condition. Based on the single crystalline films, the high-performance field-effect transistors will be fabricated. It will provide an opportunity for revealin

英文关键词： Organic Semiconductors；Single Crystals；Organic Field-effect Transistors；Mobility；Organic Circuits