摘要：The realization of tunable nonlinear optical(NLO)responses in a single nano-/micro-structure is extremely ***,in lack of effective ways to integrate multiple performances,it still faces severe limitations during ***,we demonstrate a wavelength-dependent NLO micro-structure based on host-guest metal-organic framework(MOF)materials through encapsulating linear dye molecules into periodic one-dimensional(1D)*** confinement to non-centrosymmetric polar dye molecules enhances the second-/third-order NLO responses of the hybrid crystals,causing obvious two-photon luminescence(TPL),second harmonic generation(SHG)and third harmonic generation(THG)responses in the as-prepared *** highly ordered structures of MOFs impart spatial regulation on the linear dye molecules to realize orientation alignment,resulting in the polarized anisotropy ***-to-NIR(NIR,near-infrared region)two-photon pumped lasing is realized with the natural whispering gallery mode resonance cavities of MOFs under the excitation of a 1200-nm fs ***,tunable NLO properties such as TPL,SHG and THG are achieved through switching the incident excitation wavelength from 800 to 1500 *** hybrid materials with tunable NLO responses may open a new avenue toward designing multifunctional NLO devices in the future.

摘要：Hydrogen sulphide(H2 S)is a common air pollutant,which is produced in various industry ***,it is of crucial importance to detect H2 S in real *** fluorescent sensors were reported aiming at detecting H2 S in solution;however,the fluorescence sensing of gaseous H2 S has not yet been *** this work,we utilized the post-functionalized fluorescent film,MIL-100(In)@Eu3+/Cu2+film,realizing fluorescence turn-on sensing of gaseous H2 S at room temperature for the first time with the limit of detection as low as 0.535 ppm,which is comparable to some reported fluorescent probes for S2-ions and semiconductor based gaseous H2 S *** sensor was designed due to the strong affinity of H2 S with Cu2+.With the formation of CuS,the"antenna effect"between the ligand and Eu3+recovered,resulting in the fluorescence turn-on of Eu3+***,we proposed a new method to realize multi-colour anti-counterfeiting patterns with lanthanide ions ink,taking advantage of the extraordinary smooth surface and uncoordinated carboxylate groups within the MIL-100(In)film.

摘要：金属-有机框架材料是一种由金属离子或金属簇与有机桥联配体通过配位作用组装形成的新型无机-有机复合多孔材料。无机、有机组分在分子水平的复合使得框架材料能够兼具无机和有机基元各自的特点和性能并产生协同作用,有序微孔则为组装客体分子实现光子学性能的调控甚至新光子功能的出现提供了可能。金属-有机框架材料在发光和非线性光学等光子学领域的应用正受到越来越多的关注。本文系统总结了国家自然科学基金重点项目"有序微孔材料的光子功能构筑基础研究"的最新成果,包括金属-有机框架材料的设计思路和可控制备方法,以及有机染料、钙钛矿量子点在有序微孔金属-有机框架材料中的组装,并对今后的发展方向和应用前景作了展望。

摘要：稀土金属-有机框架是一种由稀土金属离子或稀土金属簇与有机桥联配体通过配位作用组装形成的新型无机-有机多孔材料。由于其高配位数和独特的稀土金属离子(Ln^(3+))的光学特性赋予稀土金属-有机框架以丰富的分子构筑单元以及高的荧光量子效率。总结了稀土金属-有机框架的最新研究成果,介绍了稀土金属-有机框架在温度传感、小分子传感、气体传感等光子学领域的应用。另外,还介绍了包括稀土金属-有机框架的设计思路和可控制备方法,以及有机染料等在稀土金属-有机框架孔道中的组装和稀土金属离子在金属-有机框架材料孔道中的组装,并对今后的发展方向和应用前景进行了展望。

摘要：金属-有机框架材料(metal-organic frameworks,MOFs)是一类由金属离子或金属离子簇与有机配体自组装而成的杂化多孔材料。极高的比表面积和孔隙率,组成和结构可调节等特点赋予该材料灵活的设计性和丰富的功能性。金属-有机框架材料的金属离子、有机配体和装载的客体分子等皆可作为发光中心,并能对离子或小分子产生特异性荧光响应,因此在荧光探测方面有广泛应用。本文主要综述了近年来金属-有机框架材料在荧光探测方向的研究进展以及应用前景。