Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 57, Issue 8, Pages 2150-2154Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201712168
Keywords
cations; deep-ultraviolet light; fluorooxoborates; nonlinear optics; second harmonic generation
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Funding
- West Light Foundation of the CAS [2015-XBQN-B-11]
- Natural Science Foundation of Xinjiang [2016D01B061]
- National Natural Science Foundation of China [51602341, 51425206, 91622107]
- National Key Research Project [2016YFB1102302, 2016YFB0402104]
- National Basic Research Program of China [2014CB648400]
- Xinjiang Key Research and Development Program [2016B02021]
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The development of new nonlinear optical (NLO) materials for deep-ultraviolet (DUV) applications is in great demand. However, the synthesis of an ideal DUV NLO crystal is a serious challenge. Herein, three new alkali-metal fluorooxoborates, AB(4)O(6)F (A=K, Rb, and Cs, and a mixed cation between two of them), were successfully synthesized by cation regulation. It is found that all reported compounds exhibit short UV absorption edges (<190nm), and show second harmonic generation (SHG) responses ranging from 0.8 to 1.9KH(2)PO(4) (KDP). Interestingly, by judicious selection of the A-site alkali-metal cations, the arrangement of NLO-active structural units is fine-tuned to an optimal configuration, which contributes to large SHG responses.
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