Optical properties of spin coated Co_0.6Zn_0.4Mn_0.3Fe_1.7O₄ thin films deposited on silicon and platinum coated silicon substrates

ABSTRACT

This work presents optical properties of Zn and Mn co-doped CFO (Co_0.6Zn_0.4Mn_0.3Fe_1.7O₄) films deposited on Si and Pt coated Si substrates by spin coating technique. X-ray diffraction pattern of the films exhibited spinel cubic structure with polycrystalline phase. Optical characteristics of the CZFMO films are studied using photoluminscence and UV-visible spectroscopy. With the rise in annealing temperature, quenching in PL emission was observed for films grown on silicon; whereas a marginal enhancement in emission was observed for films deposited on the Pt / Si substrate. Optical band gap of the films are found to vary between 2.3 – 2.7 eV range.

KEYWORDS:

• Optical properties
• photoluminescence
• ferrite
• thin films

Acknowledgment

The author (A.G.) would like to thank Department of Science and Technology (India) for providing her the Inspire faculty fellowship.