Optical transmission spectroscopy of Al thin films deposited on glass substrates via thermal evaporation

  • Marielle Anne Pedrita Alemania National Institute of Physics, University of the Philippines Diliman
  • Alvaro Jose Abesa National Institute of Physics, University of the Philippines Diliman
  • Joseph De Mesa National Institute of Physics, University of the Philippines Diliman
  • Wilson Garcia National Institute of Physics, University of the Philippines Diliman

Abstract

Aluminum (Al) was deposited on glass substrate through thermal evaporation using the redesigned thermal evaporator chamber at the National Institute of Physics. Commercial-grade aluminum foil was placed on an alumina crucible heated by a tungsten basket inside a vacuum chamber maintained at 10-4 Torr. Evaporated films were grown at varied deposition time from 15 to 60 minutes with 15-min increments. Optical transmission spectroscopy was used to characterize the grown films. Transmission spectra measured at different sites of the films suggest that the deposition of thin film was concentrated at the center of the glass substrate. It was observed that as the deposition time increases, the transmittance of the film decreases. The setup proposed in this paper is suitable for experiments on thin film deposition in undergraduate physics laboratory.

Published
2020-09-11
How to Cite
[1]
M. A. Alemania, A. J. Abesa, J. De Mesa, and W. Garcia. Optical transmission spectroscopy of Al thin films deposited on glass substrates via thermal evaporation, Proceedings of the Samahang Pisika ng Pilipinas 38, SPP-2020-3A-08 (2020). URL: https://paperview.spp-online.org/proceedings/article/view/SPP-2020-3A-08.
Section
3A/4G/5G Condensed Matter and Materials Science (Short Presentations)