000			01536 a2200157 4500
003			DZ-ElOued
005			20260602171407.0
100	1		_aBali, Khadidja
700	1		_aBeggas, Azzeddine
245	0	0	_aElaboration and characterisation of thin filis of cobalt oxide
260			_b _c2025
500			_aElaboration and characterisation of thin filis of cobalt oxide
520			_aThe study focuses on the deposition and characterization of thin layers of cobalt oxide (Co3O4) developed using the pneumatic spray technique. A system was developed for the deposition of materials using a compressor on a heated surface, with the precursor concentration and substrate temperature being variables that were varied. The X-ray diffraction analysis revealed polycrystalline films with a spinel-like structure, exhibiting multiple growth directions. The size of crystallites exhibited a direct correlation with both temperature and molarity. The surface morphology exhibited homogeneity and comprehensive coverage. A thorough examination of the films' optical properties revealed their capacity for absorption across the UV-Visible and NIR spectrums. Transmittance spectra revealed two fundamental absorption fronts in the visible region, indicating potential degeneration of the valence band. Electrical characteristics exhibited increased conductivity.
650		4	_a/Elaboration//and//characterisation//of//thin//filis//of//cobalt//oxide/
942			_cTHESIS
999			_c19301 _d19301