期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 37, 页码 15978-15981出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202006671
关键词
materials science; nonlinear optics; structure elucidation; structure-property relationships; ultraviolet
资金
- National Natural Science Foundation of China [21975255, 51890862, 21921001, U1605245]
- National Key Research and Development Plan of Ministry of Science and Technology [2016YFB0402104]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB20000000]
- NSF of Fujian Province [2019J01020758]
- Youth Innovation Promotion Association CAS [2019303]
The first fluorosulfonic ultraviolet (UV) nonlinear optical (NLO) material, C(NH2)(3)SO3F, is rationally designed by taking KBe2BO3F2(KBBF) as the parent compound. C(NH2)(3)SO3F features similar topological layers as KBBF by replacing inorganic (BO3)(3-)with organic C(NH2)(3)(+)trigonal units and BeO3F with SO(3)F(-)tetrahedra. Therefore, C(NH2)(3)SO3F is a metal-free UV NLO crystal. Benefiting from the coplanar configuration of the C(NH2)(3)(+)cationic groups, it possesses a large SHG response of 5xKDP and moderate birefringence of 0.133@1064 nm. Besides, it has a short UV cutoff edge of 200 nm. The calculated results reveal the shortest SHG phase-matching wavelengths can reach 200 nm. These findings highlight the exploration of metal-free compounds as nontoxic and low-cost UV NLO materials as a new research area.
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