Dergiler / Turkish Journal of Physics / 1998 / Cilt: 22 - Sayı: 8

Characterization of Spray Deposited Bismuth Oxide Thin Films from Non-Aqueous Medium

Sayfa
825–830
DOI
—

Özet

Bismuth oxide thin films have been prepared on amorphous glass substrates from non-aqueous medium using spray pyrolysis method. Characterization of the films was carried out with XRD, optical absorption, dark resistivity and thermoelectric power (TEP) measurements. These studies reveal that films as deposited are polycrystalline; having an optical band gap of 2.6 eV; electrical resistivity is of the order of 106 ohm-cm; and electron carrier concentration and mobility are of the order of 3.8 \times 1019cm3 and 1.5 \times 10-4cm2 V-1s-1, respectively.

Abstract

Bismuth oxide thin films have been prepared on amorphous glass substrates from non-aqueous medium using spray pyrolysis method. Characterization of the films was carried out with XRD, optical absorption, dark resistivity and thermoelectric power (TEP) measurements. These studies reveal that films as deposited are polycrystalline; having an optical band gap of 2.6 eV; electrical resistivity is of the order of 106 ohm-cm; and electron carrier concentration and mobility are of the order of 3.8 \times 1019cm3 and 1.5 \times 10-4cm2 V-1s-1, respectively.

Anahtar kelimeler: bismuth oxide, thin films, spray pyrolysis, electrical properties, optical properties.