Details

Autor(en) / Beteiligte

• Benhaliliba, M.
• Benouis, C.E.
• Tiburcio-Silver, A.
• Yakuphanoglu, F.
• Avila-García, A.
• Tavira, A.
• Trujillo, R.R.
• Mouffak, Z.

Titel

Luminescence and physical properties of copper doped CdO derived nanostructures

Ist Teil von

• Journal of luminescence, 2012-10, Vol.132 (10), p.2653-2658

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2012

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In this paper, we studied the photoluminescence (PL), the morphological, electrical and optical properties of pure and copper-doped cadmium oxide. CdO films were grown by a facile sol–gel spin coating process at 1200rpm, and doped with copper at 2 and 3%. A (111)-oriented cubic structure with a lattice parameter of a=4.69Å was confirmed by X-ray diffraction. Copper was shown to improve the optical transmittance in the short wavelength range of the visible spectrum. The optical band gap of CdO ranged between 2.49 and 2.62eV as a result of Cu content. At room temperature, resistance fell drastically with Cu doping levels. AFM analysis of samples exhibited nano-mounts and nanowires. Finally, PL results showed a strong blue–violet emission peak at 2.80eV. [Display omitted] ► Pure and copper doped CdO have been synthesized by a facile sol–gel route at fixed speed 1200rpm. ► Structural properties of pure and doped CdO were studied in details. ► Transmittance in UV–vis and IR spectra were investigated. Optical band gaps were determined. ► Atomic force microscope surface morphology has been analyzed and grain sizes and height were determined. ► Room temperature resistance was measured. Pure and copper doped CdO photoluminescence has been achieved at ambient. Electrical measurement was complemented by Hall effect measurement in the aim to re-evaluate the resistivity and the carrier mobility.