B. Ullrich et al., THE EFFECT OF THE SUBSTRATE ON THE EMISSION FEATURES OF THIN CDS FILMS FORMED BY LASER-ABLATION, Materials science & engineering. B, Solid-state materials for advanced technology, 47(2), 1997, pp. 187-189
The luminescence of thin (2 mu m) CdS films formed by laser ablation w
as investigated in the range 480-520 nm at 300 K. It turned out that t
he luminescence properties depend crucially on the substrate. As a mai
n result, CdS films on glass exhibited an emission peak at the gap (ar
ound 505 nm) of thin CdS films in contrast to films on quartz. This ob
servation is explained by the disturbed stoichiometry of thin CdS film
s on quartz. Furthermore, we have demonstrated that both Fabry-Perot i
nterferences and position of the fundamental absorption edge of the th
in CdS films do not depend on the substrate. (C) 1997 Elsevier Science
S.A.