AMORPHOUS PbSe THIN FILM PRODUCED BY CHEMICAL BATH DEPOSITION AT pH OF 5-8


Kariper İ. A.

SURFACE REVIEW AND LETTERS, cilt.27, 2020 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 27 Konu: 4
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1142/s0218625x19501282
  • Dergi Adı: SURFACE REVIEW AND LETTERS

Özet

Lead selenide (PbSe) thin films have been deposited on amorphous glass substrates at room temperature, using the simple chemical bath deposition technique. Lead sulfate and sodium selenosulfate were used as the source materials to obtain lead selenide films. Transmittance, absorption, optical bandgap and refractive index of the films were investigated via the UV-vis spectrum. Amorphous form was observed in the XRD pattern. The structural and optical properties of PbSe thin films produced at different pH were analyzed. SEM analysis was performed for analyzing the surface of the films. Some properties of the films were observed to vary with pH and these properties were investigated according to the change of pH, for pH values of 5-8. Optical bandgap varied with pH between 1.46 eV and 1.75 eV. Film thickness also changed with pH from 465 nm to 1765 nm.