Pressure Controls the Structure and Nonlinear Optical Properties of Piezochromic CdTeMoO6

Jiang，Dequan1; Jiang，Zimin1; Song，Huimin2; Wang，Pei3; Luo，Hui1; Li，Chen1; Liu，Ke1; Wen，Ting1; Yang，Wenge1; Zhao，Yusheng4; Wang，Yonggang1

2021

10.1021/acs.chemmater.1c00362

CHEMISTRY OF MATERIALS   影响因子和分区

0897-4756

1520-5002

Materials with excellent nonlinear optical properties, especially the second-harmonic-generation (SHG) ability that can double the frequency of a laser ω to 2ω, are greatly important to modern optical technology. Recently, a temperature-induced SHG "on-off"phenomenon has been reported in dozens of metal-organic complexes, which have emerged as candidates in advanced optoelectronic applications. As a counterpart to temperature, pressure is also expected to trigger a SHG "on-off"phenomenon; nevertheless, such material is relatively limited. Herein, we report the observation of a pressure-induced SHG "on-off"phenomenon accompanied by a structural phase transition and piezochromism in CdTeMoO6. Under â 10 GPa compression, the material exhibits a sharp transition from the "SHG-on"state to the "SHG-off"state. Coupled with the SHG "on-off"phenomenon, a structural transition occurs from two-dimensional to three-dimensional due to the dramatic change in the coordination environments of Te4+ and Mo6+ from [TeO4] and [MoO4] tetrahedra to [TeO6] and [MoO6] octahedra, respectively. The suppression of stereoactive lone-pair electrons on Te4+ is considered to be responsible for the SHG-off state under high pressure. Piezochromism from colorless to black is also observed coupled with the SHG "on-off"phenomenon, which can be attributed to the hybridization between Mo 4d and O 2p orbitals. Moreover, we demonstrate that the "three-in-one"transition (structural transition, SHG on-off, and piezochromism) is irreversible at room temperature but reversible upon annealing at increased temperatures (230-350 °C) with SHG, lattice dimension and color returning to those of the initial state. All of these behaviors make CdTeMoO6 a maneuverable pressure-and temperature-regulated SHG switching material with pragmatic multifunctionality.

SCI ; EI

英语

其他

WOS:000645429400022

20211810296890

Nonlinear optics ; Optical properties ; Organometallics

Light/Optics:741.1 ; Nonlinear Optics:741.1.1 ; Organic Compounds:804.1

MATERIALS SCIENCE

2-s2.0-85104926677

Scopus

1.Center for High Pressure Science and Technology Advanced Research (HPSTAR),Beijing,100094,China
2.Beijing Center for Crystal Research and Development,Key Laboratory of Functional Crystals and Laser Technology,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing,100190,China
3.Academy for Advanced Interdisciplinary Studies,Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
4.Acad. for Adv. Interdisc. Studs.,Dept. of Physics,Shenzhen Key Laboratory of Solid State Batteries,Guangdong Provincial Key Laboratory of Energy Materials for Electric Power,Southern University of Science and Technology,Shenzhen,518055,China

Jiang，Dequan,Jiang，Zimin,Song，Huimin,et al. Pressure Controls the Structure and Nonlinear Optical Properties of Piezochromic CdTeMoO6[J]. CHEMISTRY OF MATERIALS,2021,33:2929-2936.

Jiang，Dequan.,Jiang，Zimin.,Song，Huimin.,Wang，Pei.,Luo，Hui.,...&Wang，Yonggang.(2021).Pressure Controls the Structure and Nonlinear Optical Properties of Piezochromic CdTeMoO6.CHEMISTRY OF MATERIALS,33,2929-2936.

Jiang，Dequan,et al."Pressure Controls the Structure and Nonlinear Optical Properties of Piezochromic CdTeMoO6".CHEMISTRY OF MATERIALS 33(2021):2929-2936.