ZnIO3F: Zinc Iodate Fluoride with Large Birefringence and Wide Band Gap

Minqiang Gai; Ying Wang; Tinghao Tong; Zhihua Yang; Shilie Pan

doi:10.1021/acs.inorgchem.0c00284

ZnIO₃F: Zinc Iodate Fluoride with Large Birefringence and Wide Band Gap

Inorg Chem. 2020 Apr 6;59(7):4172-4175. doi: 10.1021/acs.inorgchem.0c00284. Epub 2020 Mar 19.

Authors

Minqiang Gai^{1

2}, Ying Wang¹, Tinghao Tong¹, Zhihua Yang^{1

2}, Shilie Pan^{1

2}

Affiliations

¹ CAS Key Laboratory of Functional Materials and Devices for Special Environment and Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences (CAS), 40-10 South Beijing Road, Urumqi 830011, China.
² Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.

PMID: 32191441
DOI: 10.1021/acs.inorgchem.0c00284

Abstract

The first zinc iodate fluoride, ZnIO₃F, was synthesized by the Zn²⁺ cation, the IO₃ group, and fluorine ion, where Zn²⁺ is coordinated by O atoms from iodate and F atoms to form the ZnO₄F₂ polyhedron. It has outstanding optical characteristics, including large birefringence (Δ = 0.219 at 546 nm), wide band gap (E_g = 4.2 eV), and good thermal stability (over 475 °C), showing a subtle balance between the wide band gap and birefringence.