Спектральные особенности диффузного отражения нанопорошка гексагонального нитрида бора

Abstract

Diffuse reflectance spectra of h-BN nanostructured powders were analyzed using the Kubelka-Munk approach. Under the assumption of direct allowed transitions the energy gap width of Eg = 5.41 eV was estimated. It was shown the observed spectral features near the fundamental absorption edge were associated with optical transitions caused by the carbon impurity and were in satisfactory agreement with known independent data.