期刊
INORGANIC CHEMISTRY
卷 59, 期 18, 页码 13029-13033出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.0c02372
关键词
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资金
- Youth Innovation Promotion Association of the Chinese Academy of Science [2018035]
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology [2017B030301007]
- Fujian Institute of Innovation, Chinese Academy of Sciences [FJCXY18030101]
Nonlinear-optical (NLO) crystals, which can regulate the laser wavelength through a cascading second-harmonic-generation technique, have been widely utilized in the field of optoelectronics. In this work, we grew the NLO borate crystal Rb3YB6O12 (RYBO) using the spontaneous crystallization method. RYBO crystallizes in a chiral trigonal space group of R32 with a new type of structural arrangement built from Y-O short chains and B5O10 groups. It is significantly different from the known structure of chemical analogues Rb3REB6O12 (RE = Nd, Eu) not only in the halved unit cell parameter but also in the Y-O connection manner. The NLO response of RYBO is about 0.8KDP, 8-fold larger than that of KB5O8 center dot 4H(2)O with the same B5O10 groups because of the coexistence of two NLO-active units of the distorted YO6 octahedra and B5O10 anions. Thanks to the short ultraviolet (UV) cutoff, RYBO may have potential NLO applications in the UV and even deep-UV spectral regions.
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