Vg. Baru et al., ELECTRICAL, OPTICAL AND LUMINESCENT PROPERTIES OF SI3N4 FILMS CONTAINING SI NANOCLUSTERS, Microelectronic engineering, 36(1-4), 1997, pp. 111-114
Visible photo- and electroluminescence was found at room temperature i
n two types of nanocomposite layers SiNx(Si). The first type of layers
was obtained by annealing a-Si films in nitrogen at 900-950 degrees C
. The second type of layers was obtained by ion-plasma reactive sputte
ring of a Si target in a nitrogen atmosphere. The photo- and electrolu
minescence spectral response, optical transmission and voltage-current
characteristics of the SiNx nanocomposite layers have been studied. S
tructural information has been obtained from electron microscopy. Poss
ible physical mechanisms for the observed effects are discussed.