堆积聚合物半导体设计、位阻功能化及其电存储器

项目名称： 堆积聚合物半导体设计、位阻功能化及其电存储器

项目编号： No.21274064

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 解令海

作者单位： 南京邮电大学

项目金额： 80万元

中文摘要： 聚合物电致阻变半导体材料是构建分子机制的电阻型二极管存储器的关键，已成为有机电子、信息存储技术等领域中的国际前沿研究方向。堆积聚合物表现了特有分子内堆积弱作用与跳跃电荷输运，具有潜在的超分子聚合物的动态行为特征，有望构建新一代聚合物电致阻变材料。针对堆积聚合物的构象变化与电致阻变关系这一关键科学问题，申请人拟设计并合成一系列乙烯基堆积聚合物，随后进一步位阻功能化，系统研究堆积聚合物结构、电子结构、薄膜形貌与器件功能与性能的关系，探索薄膜可控运动的实现与表征，揭示电致阻变原理、电双/多稳态电存储材料设计规律。在此基础上，筛选出一系列高性能、稳定的电致阻变材料，为发展聚合物电阻型存储器，如闪存（Flash）、只读存储（WORM）和动态随机存储（DRAM）等提供原理与材料支撑，形成多项自主知识产权的聚合物电存储材料专利技术。

中文关键词： 数据存储；堆积聚合物；电开关；分子构象；开尔文扫描探针显微镜

英文摘要： Electroresistant polymers are the key components to construct the molecule-level two-terminal resistive memory devices, which have been one international frontier research area. The π-stacked polymers have excellent intramolecular non-covalent π-π interactions and hopping charge transport, in which their dynamic feature of supramolecular polymers probably provide one way to challenge the electroresistance of key scientific issue. In this project, a series of vinyl stacked polymers have been designed that will be synthesized, followed by the steric hindrance functionalization in order to systemically investigate the conformational change behaviors and controllable motion. We will focus on the relationship of stacked polymer structure-electronic structure-film morphology- device functionality and performance, making attempt to the realization and characterization of controllable motion, probably resulting in understanding the detailed relationships of stacked polymer memories and electroresistance, followed by developing new memory materials with bistable or multiple states. These explorations will provide principles and materials for the stable and high-performance resistive memories, such as flash, WORM and DRAM. Several independent intellectual property rights and the patent technology for the commercialization

英文关键词： Data Memory；π-stacked polymer；electroresistive switching；molecular conformation；KPFM