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Boron carbon nitride nanostructures from salt melts : tunable water-soluble phosphors
journal contribution
posted on 2011-05-11, 00:00 authored by Weiwei LeiWeiwei Lei, D Portehault, R Dimova, M AntoniettiA simple, high yield, chemical process is developed to fabricate layered h-BN nanosheets and BCNO nanoparticles with a diameter of ca. 5 nm at 700 °C. The use of the eutectic LiCl/KCl salt melt medium enhances the kinetics of the reaction between sodium borohydride and urea or guanidine as well as the dispersion of the nanoparticles in water. The carbon content can be tuned from 0 to 50 mol % by adjusting the reactant ratio, thus providing precise control of the light emission of the particles in the range 440–528 nm while reaching a quantum yield of 26%. Because of their green synthesis, low toxicity, small size, and stability against aggregation in water, the as-obtained photoluminescent BCNO nanoparticles show promise for diagnostics and optoelectronics.
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Journal
Journal of the American chemical societyVolume
133Issue
18Pagination
7121 - 7127Publisher
American Chemical SocietyLocation
Washington, D. C.Publisher DOI
ISSN
0002-7863eISSN
1520-5126Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2011, American Chemical SocietyUsage metrics
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