具有超强二阶非线性响应及优良防潮性能的一种中性分子型DMPO有机新材料  

A new neutral organic material DMPO with ultra-strong second-order nonlinear response and excellent anti-deliquescence

作　　者：安然 许向东 李丙轩 韩俊 孙瑞良 张敏刚 蒋亚东 Ran An;Xiangdong Xu;Bingxuan Li;Jun Han;Ruiliang Sun;Mingang Zhang;Yadong Jiang(State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China;Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350102,China)

机构地区：[1]State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China [2]Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350102,China

出　　处：《Science China Materials》2024年第7期2285-2292,共8页中国科学（材料科学）（英文版）

基　　金：supported by the National Natural Science Foundation of China(61377063);Sichuan Science and Technology Program(2022NSFSC0520).

摘　　要：具有强光学非线性和高稳定性的非线性光学(NLO)有机材料因其潜在的广泛应用而备受关注.本研究中,我们设计并系统地研究了具有超强二阶非线性光学响应的一种新型NLO查尔酮衍生物—1-(4-甲氧基苯基)-3-(4-乙氧基苯基)-2-丙烯基-1-酮(DMPO).合成得到的这种新设计的DMPO仅在5天内即可快速生长出尺寸为10×5×4 mm^(3)的DMPO单晶.这些DMPO晶体由中性有机分子组成,它们在较宽的波段600–1800 nm范围具有高透明性,还拥有适度的光学带隙(2.51 eV),并展现出卓越的抗潮解性能.重要的是,DMPO实测的二次谐波产生(SHG)响应高达基准材料4-(4-二甲氨基苯乙烯基)甲基吡啶对甲苯磺酸盐(DAST)的1.86倍,证实了DMPO具有优良的宏观二阶光学非线性性质.因此,DMPO是集多种优点于一身的一种有机NLO新材料,可广泛应用于NLO领域.Nonlinear optical(NLO)organic materials with large optical nonlinearity and high stability are highly attractive for wide applications.Herein,a new organic NLO chalcone derivative,1-(4-methoxy phenyl)-3-(4-ethoxy phenyl)-2-propenyl-1-ketone(DMPO),with an ultra-strong second-order nonlinear response was designed and systematically investigated.The as-designed DMPO was synthesized,and DMPO single crystals with a size of 10×5×4 mm^(3) were grown rapidly in only 5 days.The as-grown DMPO crystals formed by neutral organic molecules exhibit high transparency over a wide range of 600–1800 nm,a moderate optical band gap of 2.51 eV,and excellent anti-deliquescence.In particular,the second-harmonic generation response of DMPO reaches 1.86 times that of the benchmark material 4-N,N-dimethylamino4'-N'-methyl-stilbazolium tosylate,revealing the outstanding macroscopic optical nonlinearity of DMPO,as designed.Therefore,DMPO combines several advantages,holding great potential for applications in nonlinear optics.

关 键 词：organic nonlinear material DMPO simulations measurements SHG 

分 类 号：TB34[一般工业技术—材料科学与工程]