[01] M. Vishwas, Department of Physics, Government Science College (Autonomous), Bangalore, India. [02] K. Narasimha Rao, Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore, India.

Zinc ferrite (ZnFe2O4) thin films were synthesized on glass and quartz substrates by the sol-gel method. The influence of annealing temperature and microwave irradiation on the optical properties of ZnFe2O4 thin films was investigated. The optical transmittance decreased with increase of annealing temperature. The optical band gap energy of the ZnFe2O4 thin films was estimated at different annealing temperatures by the Tauc’s method. The optical band gap energy increased with annealing temperature. The film thickness decreased with increase of annealing temperature and refractive index increased with annealing temperature.

ZnFe2O4, Thin Films, Optical Properties, Band Gap Energy, Microwave Irradiation

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