Characteristics of Bismuth trioxide film prepared by rapid thermal oxidation

Abstract

This work presents novel results of structural, optical, and electrical properties of Bi2O3 film deposited on glass substrates by rapid thermal oxidation with aid of halogen lamp at 500°C for 45 s in static air condition without post-deposition heat treatment. The structural investigation showed that the grown bismuth trioxide film is polycrystalline and multiphase (α-Bi2O3 and β-Bi2O 3). Optical properties revealed that these films having direct optical band gap of 2.55 eV at 300 K with high transparency in the visible and NIR regions. Furthermore, these results are compared with other published results. © 2006 The Surface Science Society of Japan.