摘要
Infrared nonlinear optical(NLO)materials are crucial to the development of laser technology.However,finding ways to effectively synthesize them is still a big challenge.Herein,aided by a stable open framework,four IR NLO materials,MMn_(6)Ga_(6)S_(16)(M=Ca,Sr,Ba,and Pb),have been effectively synthesized in a high-temperature vacuum sealing system.They all crystallize in a non-centrosymmetric(NCS)space group,P6¯,and their structures feature a three-dimensional open framework composed of Mn-S single and double chains and Ga-S single and double chains,in which these one-dimensional chains increase the structural flexibility and adjustability to accommodate varied cations with different ionic radii.Remarkably,MMn_(6)Ga_(6)S_(16)(M=Ca,Sr,Ba,and Pb)exhibit not only comprehensive NLO performances including appropriate NLO responses and band gaps and a wide transmission range but also para-magnetism in magnetic properties,indicating that MMn_(6)Ga_(6)S_(16)(M=Ca,Sr,Ba,and Pb)are potential IR multifunctional materials.This work suggests that a stable open framework can be used to construct varied structures,which brings a new platform for effectively designing multifunctional materials.
基金
supported by the National Natural Science Foundation of China(grant no.52322202,52172006 and 22071179)
the Natural Science Foundation of Tianjin(grant no.20JCJQJC00060 and 21JCJQJC00090).
