摘要
Zeolitic imidazolate framework-8(ZIF-8),a metal-organic framework(MOF)with a non-centrosymmetric crystal structure,exhibits nonlinear optics(NLO)properties and can act as the nanoporous matrix of guest molecules.Amorphization of ZIF-8 can be achieved by pressure or high temperature.Both crystalline and amorphous states have their inherent features for optical applications.The effects of the crystalline-amorphous transition on the structural and optical properties under pressure were investigated in detail.Amorphization leads to the destruction of the ZIF-8 lattice structure,collapse of pores,and the change of spatial symmetry,which in turn alters the NLO properties of ZIF-8 and the luminescence properties of the guest Eu cations.Our results establish the structure–optical properties relationship in the amorphization process and provide new clues in designing novel MOFs optical materials.
作者
Xin Huang
Jin He
Yiguang Jiang
Zhuocheng Chen
Xing Duan
Long Zhang
黄鑫;何进;姜益光;陈卓成;段星;张龙(CAS Key Laboratory of Materials for High Power Laser,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;College of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences(UCAS),Beijing 100049,China;Hangzhou Institute for Advanced Study,UCAS,Hangzhou 310024,China;School of Materials and Chemistry,University of Shanghai for Science and Technology,Shanghai 200093,China;Center of Advanced Optoelectronic Materials and Devices,Key Laboratory of Novel Materials for Sensor of Zhejiang Province,College of Materials and Environmental Engineering,Hangzhou Dianzi University,Hangzhou 310018,China;Collaborative Innovation Center of IFSA(CICIFSA),Shanghai Jiao Tong University,Shanghai 200240,China)
基金
financially supported by the National Key Research&Development Program of China(No.2017YFB0310503)
National Natural Science Foundation of China(Nos.U1830125,11535010,and 52002384)
the support of Pujiang Talent Plan(No.2020PJD079)。
