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 ...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.展开更多
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).
文摘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.
