氮化铜的低温分解效应及其纳米尺度有序结构飞秒激光制备研究

项目名称： 氮化铜的低温分解效应及其纳米尺度有序结构飞秒激光制备研究

项目编号： No.51272033

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 一般工业技术

项目作者： 袁宁一

作者单位： 常州大学

项目金额： 80万元

中文摘要： 氮化铜是一种间接半导体材料，其光学带隙在 1.2-1.8 eV左右，室温下相当稳定，但其热分解温度较低，这一特性预示在立体光存储和光子晶体等领域有很好的应用前景。本项目拟利用飞秒激光，研究氮化铜的低温分解特性，寻找一种有可能实现纳米尺度有序结构复合材料的新原理与新方法；探明高质量氮化铜薄膜的生长机理；揭示飞秒激光与氮化铜的相互作用及氮化铜分解相变的微观机理；阐明氮化铜薄膜的非线性光学性质与热分解特性；提出氮化铜纳米尺度的飞秒激光加工机理；研究纳米尺度的铜/氮化铜复合材料的界面特性等基础问题，从而设计和制备二维和三维铜/氮化铜纳米结构复合材料，为立体光存储和光子晶体等应用领域提供一种新型复合结构材料。

中文关键词： 氮化铜；飞秒激光；低温分解；相变；微纳结构

英文摘要： Copper nitride is a metastable semiconductor with an indirect band gap of 1.2-1.8 eV. Copper nitride is quite stable at room temperature, but it will be decomposed at a low temperature.This characteristic indicates good application prospects in stereo light storage, photonic crystal and other fields. This project is using femtosecond laser to study the low temperature decomposition characteristics of copper nitride, looking for a new principle and new methods to obtain composite materials with orderly nanometer scale structures. The growth mechanism of copper nitride films with high quality will be studied. The effect of femtosecond laser on copper nitride, microscopic mechanism of phase change of copper nitride will be revealed. Nonlinear optical properties and thermal decomposition characteristics of copper nitride will be clarified, and the formation mechanism of nanometer scale composite materials based on femtosecond laser processing will bu put forword. Interface characteristics of nanometer scale copper/nitriding copper composite material will be researched, and two dimensional and three dimensional copper/ copper nitride nano structure composite material will be designed and prepared, which will supply a new material for applications in stereo optical storage and photonic crystal.

英文关键词： copper nitride；femtosecond laser；low temperature decomposition；phase transition；micro-nano structure