alexa MODIFICATION IN OPTICAL PROPERTIES OF ZNO THIN FILM BY
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
Open Access

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Research Article

MODIFICATION IN OPTICAL PROPERTIES OF ZNO THIN FILM BY ANNEALING

Aman Jain1*, Mohit Johari3, Anshul Jain4, Praveen Kumar Pandey1, Rekha Agrawal2
  1. P G Student, Department of Electronics & Communication, Suresh Gyan Vihar University, Jaipur, Rajasthan India
  2. Associate Professor, Department of Electronics & Communication, Suresh Gyan Vihar University, Jaipur, Raj., India
  3. Research Scholar, Department of Physics, R.B.S. College, Agra, Uttar Pradesh, India
  4. JRF, Department of Physics, R.B.S. College, Agra, Uttar Pradesh, India
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Abstract

In this work, we have synthesized ZnO thin film on quartz substrate by RF magnetron sputtering method. We annealed these films at three different temperatures of 200oC, 400oC and 600oC. The absorption spectra showed that the band gap of the deposited film was about 3.29 eV. So it confirmed that the film was of ZnO. As temperature increased the band gap of the film decreased. Transmittance spectra revealed that the transparency of the film increased with rise in temperature. Different optical constants such as refractive index, film thickness, band gap, transmittance, extinction coefficient and so on were investigated and compared at different temperatures. Ellipsometry revealed that the thickness of the film was 125 nm

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