The electronic structure of carbon nitride films has been studied using sof
t X-ray absorption and emission spectroscopy. Resonant N K-emission spectra
show a strong dependence on excitation photon energies and the substrate t
emperatures, while C K-emission band appears insensitive to the different e
xcitation photon energies and the substrate temperatures. Two nitrogen site
s are assigned to N bonded to sp(3)-hybridized C and to N bonded to sp(2)-h
ybridized C. (C) 1999 Elsevier Science B.V. All rights reserved.