有机染料阳离子修饰的金属有机框架材料的倍频效应及双光子活性
发布时间：2018-11-16 10:02
【摘要】：选取易于制备的MOFs(ZJU-28)为功能性载体,将具有非线性光学性质的2种阳离子染料DB和TM与载体孔道中的二甲胺阳离子进行交换,实现阳离子型有机荧光离子在金属有机框架中定向组装,获得具有非线性光学效应的复合材料。强极性染料离子DB和TM在晶体孔道中的定向排布,改变了原有MOFs晶体的中心对称性。通过共聚焦显微镜观察到,原来不具有非线性光学效应的ZJU-28晶体通过有机阳离子交换后,形成的DB@ZJU-28和TM@ZJU-28复合材料具有较强的倍频效应和双光子荧光。
[Abstract]:Two kinds of cationic dyes DB and TM with nonlinear optical properties were exchanged with dimethylamine cations in carrier channels by using MOFs (ZJU-28), which is easy to prepare, as functional carrier. The cationic organic fluorescent ions were assembled in organometallic frame and the composites with nonlinear optical effect were obtained. The directional placement of DB and TM in the crystal pore changed the central symmetry of the original MOFs crystal. It was observed by confocal microscope that the DB@ZJU-28 and TM@ZJU-28 composites formed by organic cation exchange without nonlinear optical effect had strong frequency doubling effect and two-photon fluorescence.
【作者单位】： 安徽大学功能无机材料化学安徽省重点实验室;南京大学配位化学国家重点实验室;
【基金】：国家自然科学基金(No.51432001) 高等教育振兴规划人才工程(2013)资助项目
【分类号】：O641.4
，
本文编号：2335208
[Abstract]:Two kinds of cationic dyes DB and TM with nonlinear optical properties were exchanged with dimethylamine cations in carrier channels by using MOFs (ZJU-28), which is easy to prepare, as functional carrier. The cationic organic fluorescent ions were assembled in organometallic frame and the composites with nonlinear optical effect were obtained. The directional placement of DB and TM in the crystal pore changed the central symmetry of the original MOFs crystal. It was observed by confocal microscope that the DB@ZJU-28 and TM@ZJU-28 composites formed by organic cation exchange without nonlinear optical effect had strong frequency doubling effect and two-photon fluorescence.
【作者单位】： 安徽大学功能无机材料化学安徽省重点实验室;南京大学配位化学国家重点实验室;
【基金】：国家自然科学基金(No.51432001) 高等教育振兴规划人才工程(2013)资助项目
【分类号】：O641.4
，
本文编号：2335208
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