Deep-Ultraviolet Nonlinear Optics in a Borate Framework with 21-Ring Channels

作者：Wei, Qi; Wang, Jia-Jia; He, Chao; Cheng, Jian-Wen^*; Yang, Guo-Yu^*

来源：Chemistry - A European Journal, 2016, 22(31): 10759-10762.

DOI：10.1002/chem.201602135

• borates
• hydrothermal synthesis
• oxoboron clusters
• structure-property relationships
• UV nonlinear optics

A new borate LiBa3(OH)[B9O16][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 (KH2PO4). 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.

• 出版日期2016-7-25
• 单位北京理工大学; 河北科技大学; 浙江师范大学; 汕头大学