LUMINESCENT AND OPTICAL PROPERTIES OF DOPED AND UNDOPED ULTRATHIN TITANIUM OXIDE FILMS

摘要

We describe fabrication of ultrathin (3-4 nm thick) sol-gel derived titania films undoped and doped with erbium on silicon. The erbium-doped films reveal room temperature photoluminescence (PL) with maximum at 1546 nm after annealing at 1000 °C.