Journal
CRYSTENGCOMM
Volume 15, Issue 13, Pages 2422-2427Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ce26506d
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Funding
- National Natural Science Foundation of China [91222204, 90922035]
- Main Direction Program of Knowledge Innovation of Chinese Academy of Sciences [KJCX2-EW-H03-03]
- Special Project of National Major Scientific Equipment Development of China [2012YQ120060]
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A nonlinear optical crystal cadmium fluoroborate (Cd-5(BO3)(3)F) has been synthesized through high-temperature solid-state reactions. In the crystal structure, CdOnFm (n = 4, 5, 7; m = 0, 1, 2) distorted polyhedra interconnect via shared edges and corners to form a 3D framework with tunnels along the c axis. BO3 planar triangles lie approximately parallel in the (001) plane. The combination of triangular BO3 groups with pi-conjugated systems and the d(10) cation Cd2+ with polar displacement produces large SHG responses. The second harmonic generation (SHG) measurement shows that Cd-5(BO3)(3)F possesses a large SHG response about four times that of KH2PO4 (KDP) and is phase-matchable in the visible region. In addition, it exhibits a wide transparent region ranging from UV to near IR, which suggests that the material is a promising NLO material.
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