GeTe基新型纳米复合多层相变薄膜的可控制备与性能研究

项目名称： GeTe基新型纳米复合多层相变薄膜的可控制备与性能研究

项目编号： No.51202148

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 无机非金属材料学科

项目作者： 汪昌州

作者单位： 中国科学院上海高等研究院

项目金额： 25万元

中文摘要： 如何使相变材料同时具有快的相变速度和良好的热稳定性已成为相变存储器研发中急需解决的关键问题，新型相变材料的研发对于提高相变存储器的性能起到了至关重要的作用。本项目以GeTe基新型纳米复合多层相变薄膜为研究对象，通过揭示GeTe基纳米复合多层相变薄膜层厚度、周期数和相变特性、热稳定性、热导率等性能之间的关联，实现对其性能的有效调控。通过分析GeTe基纳米复合多层相变薄膜的相变动力学过程，对多层薄膜组分的均匀性和界面的稳定性进行研究，阐明纳米复合多层相变薄膜周期中层与层之间的相互作用机理，旨在开发出满足于相变存储器的高速、热稳定、高密度以及低功耗的新型相变材料体系。

中文关键词： 纳米复合；多层薄膜；相变；热稳定性；

英文摘要： How to make phase-change materials both have fast phase-change speed and good thermal stability is the key problem that needs to be solved in the development of phase-change memory. To develop novel phase-change materials plays a crucial role in improving the performance of phase-change memory. GeTe-based novel nanocomposite multilayer phase-change films are taken as the research object in the given project. In order to effectively modulate the phase-change speed, thermal stability, and thermal conductivity, and so on, the relationship between the layer thickness, periodicity, and these properties are revealed. Phase-change dynamic processes of GeTe-based novel nanocomposite multilayer phase-change films are introduced in the research. The composition uniformity and interface thermal stability of the multilayer films are investigated. The interaction mechanism between the layers in the multilayer periods is clarified. The aim of the project is to exploit novel phase-change materials with fast speed, good thermal stability, high density, and low power consumption for phase-change memory applications.

英文关键词： Nanocomposite；Multilayer films；Phase-change；Thermal stability；