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Deep‐Ultraviolet Nonlinear Optics in a Borate Framework with 21‐Ring Channels
Author(s) -
Wei Qi,
Wang JiaJia,
He Chao,
Cheng JianWen,
Yang GuoYu
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201602135
Subject(s) - boron , barium borate , second harmonic generation , ultraviolet , materials science , barium , hydrothermal circulation , nonlinear optics , lithium borate , ion , hydrothermal synthesis , absorption edge , wavelength , template , optoelectronics , porosity , optics , chemistry , nanotechnology , laser , physics , chemical engineering , organic chemistry , doping , composite material , band gap , borate glass , metallurgy , engineering
A new borate LiBa 3 (OH)[B 9 O 16 ][B(OH) 4 ], which combines the uniform porosity of open‐frameworks with the extraordinary NLO properties of borates, has been obtained under hydrothermal conditions by using mixed lithium and barium ions as templates. The framework displays an acs ‐type net with large 21‐ring channels. The second harmonic generation (SHG) measurement shows that it is a type I phase‐matchable material with a strong SHG signal intensity about 3.1 times that of KDP (KH 2 PO 4 ). UV/Vis–NIR diffuse reflectance analysis indicates that the compound has a wide transparency range with the short‐wavelength absorption edge below 200 nm. These characteristics reveal that the compound is a promising deep‐UV nonlinear optical material.