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definition of graphite hexagonal boron nitride

Sources:nanopure | Release date: 2018-11-09 | Browsing volume:
Key words:definition of graphite hexagonal boron nitride
We have carried out laser-induced fluorescence measurements of hBN powder at room temperature under different environmental conditions (dry powder and suspensions in water or ethanol). From fluorescence excitation spectra, the absorption onset, related to the bandgap energy of this indirect gap semiconductor, has been precisely determined to be E g=4.02卤0.01 eV. This result is of importance in view of large discrepancies in previously
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