当前位置: X-MOL 学术Angew. Chem. Int. Ed. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Cs3Pb2(CH3COO)2X5 (X=I, Br): Halides with Strong Second‐Harmonic Generation Response Induced by Acetate Groups
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-10-14 , DOI: 10.1002/anie.202013088
Qi‐Rui Shui 1, 2 , Hong‐Xin Tang 1, 3 , Rui‐Biao Fu 1 , Yuan‐Bin Fang 1, 3 , Zu‐Ju Ma 4 , Xin‐Tao Wu 1
Affiliation  

Nonlinear optical (NLO) crystals are the key component in solid‐state lasers. New second‐harmonic generation (SHG) effective halides, Cs3Pb2(CH3COO)2X5 (X=I, Br), have been rationally synthesized by introducing acetate groups into lead halide perovskites under moderate solvothermal conditions. Cs3Pb2(CH3COO)2X5 (X=I, Br) feature highly oriented anionic chains constructed by distorted [PbX4O2] (X=I, Br) polyhedrons. Both the theoretical studies and the dipole moment calculations uncover that their SHG effects are mainly originated from the distorted [PbX4O2] (X=I, Br) polyhedrons. Remarkably, Cs3Pb2(CH3COO)2I5 exhibits strong phase‐matching SHG response (8×KDP) and large birefringence (0.26@ 1064 nm). Moreover, Cs3Pb2(CH3COO)2X5 (X=I, Br) also possess high laser damage threshold (LDT) which are almost 27 and 41 times that of AgGaS2, respectively.

中文翻译:

Cs3Pb2(CH3COO)2X5(X = I,Br):由乙酸根基团诱导的具有强二次谐波生成响应的卤化物

非线性光学(NLO)晶体是固态激光器中的关键组件。通过在中等溶剂热条件下将乙酸酯基团引入卤化钙钛矿中,可以合理地合成新一代的次谐波(SHG)有效卤化物Cs 3 Pb 2(CH 3 COO)2 X 5(X = I,Br)。Cs 3 Pb 2(CH 3 COO)2 X 5(X = I,Br)具有高度取向的阴离子链,该阴离子链由扭曲的[PbX 4 O 2](X = I,Br)多面体。理论研究和偶极矩计算都发现,它们的SHG效应主要源自扭曲的[PbX 4 O 2 ](X = I,Br)多面体。值得注意的是,Cs 3 Pb 2(CH 3 COO)2 I 5表现出强的相位匹配SHG响应(8×KDP)和大的双折射(0.26 @ 1064 nm)。此外,Cs 3 Pb 2(CH 3 COO)2 X 5(X = I,Br)还具有较高的激光损伤阈值(LDT),分别约为AgGaS 2的27倍和41倍。
更新日期:2020-10-14
down
wechat
bug