红外量子点组装介孔AlPO4玻璃及光纤：新型宽调谐光通讯材料

项目名称： 红外量子点组装介孔AlPO4玻璃及光纤：新型宽调谐光通讯材料

项目编号： No.61275208

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 张龙

作者单位： 中国科学院上海光学精密机械研究所

项目金额： 86万元

中文摘要： 面向先进光学和红外光通讯材料的应用，尤其是面向"十二五"全光网络光通讯动态波长分配和新型宽调谐通讯光源的开发。基于微介孔材料掺杂[Nature Photonics 2012]是实现光通讯波段宽调谐多波长发射的最有效的方法之一，可望在介孔材料中高浓度、低团聚致密组装量子点，有望突破量子点在固体材料中难实现高效率、高稳定性和尺寸可控的"瓶颈"。本项目拟以我们最近发展的新型介孔AlPO4玻璃、薄膜和光纤为载体，运用浸渍法制备红外量子点组装的新型光通讯发光材料。拟利用先进固态NMR等结构分析手段研究量子点与介孔AlPO4材料间的相互作用：物理吸附/化学键合，深入研究介孔结构、孔径大小、浸渍温度和时间、热处理工艺、量子点前驱体、量子点浓度等对发光性质的影响以及量子点掺杂介孔AlPO4材料机理和制备方案，实现红外量子点高浓度、低团聚和尺寸可控组装，发展新型宽调谐、高效率和高稳定性的通讯光源材料。

中文关键词： 磷酸铝；量子点；溶胶凝胶；薄膜；光纤

英文摘要： Mesoporous material incoporated with infrared functional quantum dots is one of the efficient method to achieve wide tunable multiwavelength emission, which also is potential to break through the "bottle-neck"technology of quantum dot(QDs) which is difficult to achieve high efficiency,high stablility and wide tunability in the application of infrared commucaiton materials, advanced optics and especially in light communication in network and novel infrared light source.Based on our recently work in the development of mesoporous AlPO4 mesoporous materials, this project is referred to the fabrication of infrared QDs doped mesoporous AlPO4 glass,film and fiber by dipping method.The reaction ,include physical absorption and chemical bonding,between quantum dot and host is investigated by solid state NMR and other structural analysis. The effect of mesopore, solidification parameters (temperature, time)，QDs precursors and QDs concentration on the optical properties is investigated and optimized to achieve wide tunable emission, dense(chemical bonding)incoporating,low aggregates but high efficient and high stable novel mesoporous AlPO4 glass ,film and fiber hosts for optical communication light source.

英文关键词： AlPO4；quantum dots；sol-gel；coating；fiber