A new congruent-melting oxyborate, Pb 4 O(BO 3 ) 2 with optimally aligned BO 3 triangles adopting layered-type arrangement
2011; Royal Society of Chemistry; Volume: 22; Issue: 5 Linguagem: Inglês
10.1039/c1jm14590h
ISSN1364-5501
AutoresHongwei Yu, Shilie Pan, Hongping Wu, Wenwu Zhao, Fangfang Zhang, Hongyi Li, Zhihua Yang,
Tópico(s)Multiferroics and related materials
ResumoIntroduction of the stereo-effect of the lone pair of the Pb2+ cation in borate with layered-type arrangement of BO3 triangles generates a new phase-matching nonlinear optical material, Pb4O(BO3)2. In the structure, the interesting Pb4O10 tetramers are connected to each other by sharing O atoms to form a 3D framework. In the space of the framework, the isolated BO3 and B2O5 groups are arranged parallel to the (100) to balance charge. The title compound melts congruently and exhibits a SHG response of ∼3 times that of KDP and ∼160 times that of a-SiO2. And it has a wide transparent region from the UV to near IR region with a UV cut-off edge of 280 nm, which means that Pb4O(BO3)2 is a very promising NLO material for potential application.
Referência(s)