AI Article Synopsis
- - Metal borates are valuable for studying short-wavelength nonlinear optical (NLO) crystals, with galloborates showcasing diverse structures and strong potential as ultraviolet NLO crystals.
- - The shortest cut-off edge for galloborates is recorded at 190 nm, with a significant second harmonic generation (SHG) effect measured at 4.6 times that of KDP in specific compounds.
- - The text categorizes galloborates into two main types based on their compositions, discusses their structural properties, band gaps, and SHG intensities, and offers future research directions in NLO inorganic galloborates.
Article Abstract
Metal borates are excellent source materials for exploring short-wavelength nonlinear optical (NLO) crystals. Galloborates show rich structural chemistry with various coordination configurations of Ga cation and B-O anionic units and are suitable candidates as ultraviolet NLO crystals. Up to now, the shortest cut-off edge of galloborates was reported to be down to 190 nm in KCsGa(BO)(OH), while the largest second harmonic generation (SHG) effect of galloborates was reported to be up to 4.6 times that of KHPO (KDP) in NaGa[BO(OH)]·2B(OH). Herein, we give a detailed summary of the recent progress in NLO inorganic galloborates, where these galloborates are grouped into two types in terms of their compositions: (1) alkali/alkaline earth metal galloborates and (2) alkali/alkaline earth metal galloborate halides. We discuss their structural features, band gaps, and SHG intensities. Finally, we give future perspectives in this field.
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| http://dx.doi.org/10.1039/d4dt01206b | DOI Listing |
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