Journal
NANOSCALE
Volume 6, Issue 14, Pages 7838-7841Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr01017e
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Self-standing highly crystallized hexagonal boron nitride (h-BN) mono-, bi- and few-layers have been obtained for the first time via the Polymer Derived Ceramics (PDCs) route by adding lithium nitride (Li3N) micropowders to liquid-state polyborazylene (PBN). Incorporation of Li3N as a crystallization promoter allows the onset of crystallization of h-BN at a lower temperature (1200 degrees C) than under classical conditions (1800 degrees C). The hexagonal structure was confirmed by both electron and X-ray diffraction.
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