高性噪比有机光致变色荧光信息存储材料的合成及性能研究

项目名称： 高性噪比有机光致变色荧光信息存储材料的合成及性能研究

项目编号： No.20802065

项目类型： 青年科学基金项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 王胜

作者单位： 湛江师范学院

项目金额： 18万元

中文摘要： 设计并合成了高性噪比的全光子型有机光致变色荧光分子信息存储材料，着重探索合成了二噻吩乙烯光致变色荧光分子，螺噁嗪光致变色荧光分子及聚合物、水杨醛西夫碱荧光光致变色分子，对它们结构与性能进行了表征。研究了它们的光致变色性能，光控荧光变化性能，以及光调控荧光变化的机理。研究了有机荧光光控材料中能量转换、传递、与相关效应之间的关系及对它们的可控性。研究荧光光致变色材料掺杂在薄膜中的光致变色性能、耐疲劳性、光稳定性及光控荧光信号的变化规律及调控机制，发现并研究了具有固体聚集诱导荧光增强萘酰亚胺-西夫碱荧光光致变色分子材料在固体状态下分子聚集行为、光控单分子光致变色对荧光影响的机制，光致变色开关分子对荧光发色团能量转移调控。探索了它们在全光子型可擦重写功能新型纳米分子存储器件的构筑方法及其相关应用问题，建立了以荧光信号作为非破坏性读出方式的检测方法，提高了信息写入、读出的信噪比。为实现纳米尺度分子水平超高密度光信息存储应用奠定了基础。同时，拓展了高性能光致变色荧光材料在生命科学和多功能分子开光等方面的应用研究。发表SCI收录论文21篇，申请专利1项，参加学术会议4次，培养硕士研究生4人。

中文关键词： 光致变色；荧光；合成；信息存储

英文摘要： We have designed and synthesized some highly fluorescent contrast for all optical information storage materials based on organic photochromic compounds including fluorescent photochromic diarylethene, spirooxazine and its polymers and schiff base which chemical structures and properties are characterized. We especially investigated their photochromic properties, photo-controlled fluorescent changes and their change mechanism. We also explored the energy transform, transfer and relevant effect of organic fluorescent photo-controlled materials and their photo-controlled properties. We investigated their photochromism, resist fatigue, photo-stability and photo-controlled fluorescent signals change and effect mechanism in film. The photochromic fluorescent naphthlimide-schiff base with aggregate induced emission increase phenomenon were developed, Some important problems such as the molecular aggregate behavior of these photochromic fluorescent compounds in solid state, the mechanism of the fluorescent changes depending on photo-controlled single molecule reaction and the fluorescent chromophores energy controlled by photochromic switching units will be investigated. Their all-optical function such as reading, writing and erasing in nano-meter size information storage device will be prepared and investigated. We achieved the fluorescent signal as non-destructive read signal, improve the signal-to-noise of information writing and read in super-high density optical information storage device. In addition, we further developed their application in life sciences，multi-function molecular switches and the other fields. We have published 21 research papers in SCI journals, applied 1 patent, attend 3 international symposiums and trained 4 master course students, one have got his master degree.

英文关键词： photochromism;fluorescence; synthesis;information storage