Single and multilayered a-SiOx:H (x < 1) thin film samples analyzed by optical absorption and small-angle X-ray scattering

BACIOĞLU A., KAZAN U., İDE S.

MATERIALS CHEMISTRY AND PHYSICS, vol.146, no.3, pp.425-430, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 146 Issue: 3
  • Publication Date: 2014
  • Doi Number: 10.1016/j.matchemphys.2014.03.048
  • Journal Name: MATERIALS CHEMISTRY AND PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.425-430
  • Keywords: Small-angle scattering, Alloys, Oxides, Amorphous materials, Multilayers, SILICON SOLAR-CELLS, DISTRIBUTED BRAGG REFLECTORS, MU-C-SIOX/H, AMORPHOUS-SILICON, GLOW-DISCHARGE, H FILMS, SI, OXIDE, ENHANCEMENT, EXCITATION
  • Hacettepe University Affiliated: Yes

Abstract

Hydrogenated amorphous silicon oxygen alloy thin films (a-SiOx:H) were prepared on glass and crystalline silicon substrates, with two different oxygen contents: x = 0.15 and x = 0.32. The deposition was realized in an RF-PECVD reactor by using the plasma of the gas mixture SiH4 and CO2 with tunable flow rates. The optical characterization data of the single layers were received from the optical transmittance experiments. Multilayered samples were designed upon the results of the single layers. In depositing the multilayers the repetition of the a-SiO0.15:H/a-SiO0.32:H kernel-pair was used. The samples were prepared as 25-pair of lambda/4 layers, 3-pair of lambda/4 layers and 3-pair of lambda/2 layers. The inner morphologies and nanostructural contents of the films were investigated by Small-Angle X-ray Scattering (SAXS) method. (C) 2014 Elsevier B.V. All rights reserved.