“…Related amorphous ''oxygenated'' cadmium telluride films by RF sputtering, have been reported by other authors; however, they used N 2 /O 2 /Ar [11,12] or N 2 O (nitrous oxide)/Ar mixtures [23] as the growth atmosphere; in the present work, no nitrogen is intentionally introduced in the growth chamber. Polycrystalline CdTeO 3 films have been obtained (without any CdTe or other materials being observed), on the other hand, by using a pure O 2 atmosphere during growth by reactive pulsed laser deposition with CdTe targets [24]. When CdTe is analyzed by Raman spectroscopy, both as monocrystal and film, bands associated with metallic tellurium are frequently observed; such signals are ascribed to Te atomic clusters and are easily detected by this analytical technique, in contrast with others [25].…”