Synthesis and Characterization of a Novel Nonlinear Optical Material Mg2Na2ZnB4O10

Abstract

A novel borate compound with the chemical formula Mg 2 Na 2 ZnB 4 O 10 (MNZB) has been synthesized first time from the 2MgO-Na 2 O-ZnO-2B 2 O 3 system via solid-state reaction. The obtained polycrystalline borate material MNZB was characterized by powder X-ray diffraction, Fourier transform infrared (FT-IR) spectroscopy, and second harmonic generation (SHG) measurement. Ultraviolet-visible spectroscopy has been carried out to analyze transmission of the MNZB crystals grown by slow cooling method. The optical band gap has been estimated. The functional groups were identified by using the FT-IR data. The SHG efficiency of the crystal was obtained by the Kurtz powder technique and it is found to be 2.78 times that of potassium dihydrogen phosphate. The results are presented and discussed.

A Series of Chalcogenide Borates RE6Ta2MgQB8O26 (RE = Sm, Eu, Gd; Q = S, Se) Featuring a B4O10 Cluster

“…There is also a B 4 O 10 unit in In 19 B 34 O 74 (OH) 11 , however, which is not isolated but further connected to form a supertetrahedron. It seems that B 4 O 10 units exist in Li 6 CuB 4 O 10 and Mg 2 Na 2 ZnB 4 O 10 ; , however, in both structures, two B 2 O 5 dimers are separated by one central Cu 2+ /Zn 2+ ion to form the CuB 4 O 10 or ZnB 4 O 10 cluster. Because borates are the most important sources for UV NLO materials and the B 4 O 10 cluster here is a fresh one, it is interesting to evaluate these B 4 O 10 clusters’ potential for NLO chromophores.…”