Cuprous oxide (Cu2O) thin films prepared by reactive d.c. sputtering technique

Autor: Radhaballav Bhar, Arun Kumar Pal, S. Dolai, S. Das, Sajjad Hussain
Rok vydání: 2017
Předmět:
Zdroj: Vacuum. 141:296-306
ISSN: 0042-207X
DOI: 10.1016/j.vacuum.2017.04.033
Popis: Synthesis of cuprous oxide (Cu2O) by direct current (DC) reactive magnetron sputtering technique has been demonstrated. Ar:O2 gas ratios in the plasma and the substrate temperature were the decisive parameters for the formation of unblemished Cu2O polycrystalline films. The optimal deposition parameters are: Ar:O2 ∼90:10; Ts∼623 K and d.c. power ∼0.6 kV at 1.2 mA/cm2. Optical spectroscopy, photo luminescence, X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and Raman measurements were carried out to characterize the films. Predominant p-type conductivity in the Cu2O films was confirmed from Hall measurement.
Databáze: OpenAIRE