Issue 34, 2022

Cs2VOF4(IO2F2): Rationally designing a noncentrosymmetric early-transition-metal fluoroiodate

Abstract

F-containing early-transition-metal (ETM) iodates are an interesting material class for the exploration of nonlinear optical (NLO) crystals. However, their rational structural design remains a great challenge due to the poor structural predictability of inorganic structures. In this report, we analyzed the structural features of F-containing ETM iodates and obtained some rules for guiding the synthesis of the different types of F-containing ETM iodates. With these rules, we have successfully synthesized a new ETM fluoroiodate, Cs2VOF4(IO2F2), which exhibits not only a large second harmonic generation (SHG) response (5 × KDP at 1064 nm and 0.7 × KTP at 2090 nm) but also a moderate birefringence (0.088@1064 nm) and a short UV cutoff edge (257 nm). This indicates that the rational structural design of F-containing ETM iodate NLO crystals is possible based on a good understanding of their structural chemistry.

Graphical abstract: Cs2VOF4(IO2F2): Rationally designing a noncentrosymmetric early-transition-metal fluoroiodate

Supplementary files

Article information

Article type
Communication
Submitted
14 Jun 2022
Accepted
29 Jul 2022
First published
29 Jul 2022

J. Mater. Chem. C, 2022,10, 12197-12201

Cs2VOF4(IO2F2): Rationally designing a noncentrosymmetric early-transition-metal fluoroiodate

M. Ding, H. Wu, Z. Hu, J. Wang, Y. Wu and H. Yu, J. Mater. Chem. C, 2022, 10, 12197 DOI: 10.1039/D2TC02489F

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