Research progress of metal-organic framework films in third-order nonlinear optics
Metal-organic framework(MOF)materials have attracted widespread attention in the field of third-order nonlinear optics(NLO)due to their customizable structure and flexible and controllable coordination modes.Compared with the liquid dispersion,the third-order NLO performance of MOFs in the solid state is particularly important.This provides a deeper understanding of the inherent optical performance of MOFs and helps realize the practical application in optical devices.However,it is difficult to directly study the NLO performance of MOFs in the solid state due to the presence of scattering and limitations of transmittance.In order to study the NLO perfor-mance of MOFs in the solid state,the most feasible strategy is to process MOFs into films with better transmittance.MOF film materials not only inherit the MOF inherent NLO performance but also combine the high transmittance and flexible mechanical properties of the film.This review analyzes and summarizes the preparation methods of MOF films and related work on NLO performance research.The prospects of MOF films in third-order NLO perfor-mance are proposed in this review.
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