Synthesis and characterizaton of silver/silver oxide thin film via chemical bath deposition (6 pages)

• U. Nwankwo ^[1] ; T.O. Daniel ^[1]
  1. [1] Alex Ekwueme-Federal University Ndufu-Alike Ikwo, Ebonyi State, Nigeria
• Localización: Revista Mexicana de Física, ISSN-e 0035-001X, Vol. 71, Nº. 1, 2025
• Idioma: inglés
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• Resumen

  • The chemical bath deposition technique was used to deposit Ag/AgO films on a glass substrate using silver nitrate (AgNO3) and triethanolamine (a polymer matrix) as the complexing agent. X-ray diffraction (XRD) was used to study the crystalline structure of the films, scanning electron microscopy (SEM) was used to study the micrograph/morphology, and energy dispersive spectroscopy (EDS) was used for elemental composition analysis. Four peaks at 2θ values of 38.05°, 44.15°, 64.31°, and 77.41° matched the (111), (200), (220), and (311) peaks, respectively, indicating that the obtained films were crystalline. The Ag/AgO films had a relatively low transmittance value of approximately 12% in the wavelength range of 300 to 1100 nm, a band gap energy of less than 2 eV, and a high absorbance of ≥ 80%, suggesting applications in photothermal, photoelectronic devices/systems, architectural coatings, and other areas where spectrally selective films are of interest.