Cd3(IO3)(IO4)F2·0.1CdO: A Nonlinear-Optical Crystal with the Introduction of Fluoride into Iodate Containing Both [IO3]- and [IO4]3- Groups

Liling Cao; Shengzi Zhang; Dan Zhao; Bingxuan Li; Tao Yan; Guangsai Yang; Zheshuai Lin; Min Luo; Ning Ye

doi:10.1021/acs.inorgchem.1c00506

Cd₃(IO₃)(IO₄)F₂·0.1CdO: A Nonlinear-Optical Crystal with the Introduction of Fluoride into Iodate Containing Both [IO₃]^- and [IO₄]^3- Groups

Inorg Chem. 2021 Apr 19;60(8):6040-6046. doi: 10.1021/acs.inorgchem.1c00506. Epub 2021 Apr 6.

Authors

Liling Cao^{1

2}, Shengzi Zhang^{2

3}, Dan Zhao⁴, Bingxuan Li¹, Tao Yan¹, Guangsai Yang⁵, Zheshuai Lin³, Min Luo¹, Ning Ye¹

Affiliations

¹ Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
² University of the Chinese Academy of Sciences, Beijing 100049, China.
³ Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
⁴ College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China.
⁵ Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, North Wollongong, New South Wales 2500, Australia.

PMID: 33822589
DOI: 10.1021/acs.inorgchem.1c00506

Abstract

A new d¹⁰ transition-metal iodate fluoride, namely, Cd₃(IO₃)(IO₄)F₂·0.1CdO, was successfully designed and synthesized via the mid-infrared hydrothermal method. It crystallizes in the polar space group R3m and features the coexistence of the [IO₃]^- and [IO₄]^3- groups. Cd₃(IO₃)(IO₄)F₂·0.1CdO has a strong second-harmonic-generation response of about 3.0 times that of KDP(KH2PO4), large birefringence (0.133 at 546.1 nm), and a wide energy band gap (4.00 eV). In addition, the power laser damage threshold (LDT) measurement indicated that it possesses a high LDT of 84.29 MW/cm², which is about 30 times that of AgGaS₂. These superior properties showed that Cd₃(IO₃)(IO₄)F₂·0.1CdO may be an excellent nonlinear-optical crystal for visible and mid-infrared application.