Optical characterization of tin oxide-coated porous silicon

Authors

  • Joybelle M. Lopez Materials Science and Engineering Program, University of the Philippines Diliman
  • Arven I. Cafe National Institute of Physics, University of the Philippines Diliman
  • Laureen Ida M. Ballesteros Materials Science and Engineering Program, University of the Philippines Diliman
  • Lorenzo Lopez, Jr. Materials Science and Engineering Program, University of the Philippines Diliman
  • Maria Angela B. Faustino Materials Science and Engineering Program, University of the Philippines Diliman
  • Arnel A. Salvador National Institute of Physics, University of the Philippines Diliman
  • Armando S. Somintac National Institute of Physics, University of the Philippines Diliman

Abstract

Fabrication and characterization of tin oxide-coated porous silicon are presented. The effects of varying the current density and thickness during the electrochemical etching of the samples were investigated. Also, tin oxide was successfully deposited on porous silicon through nebulized spray pyrolysis. Initially, the refractive indices of pSi samples varied at various thicknesses of 500 nm, 800 nm and 1500 nm were 1.76, 1.51 and 1.37, respectively. However, for samples coated with tin oxide, refractive indices obtained from reflectance spectra were 2.08, 1.62 and 1.31, respectively. Porosity in porous silicon is greater than that of porous silicon-oxide.

Proceedings 2015 SPP Cover

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Published

2015-06-03

Issue

2015: Proceedings of the 33rd Samahang Pisika ng Pilipinas Physics Congress

Section

Condensed Matter Physics and Materials Science

License

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Upon acceptance of their manuscript, the Authors further agree to grant SPP the non-exclusive, worldwide, and royalty-free rights to record, edit, copy, reproduce, publish, distribute, and use all or part of the manuscript for any purpose, in any media now existing or developed in the future, either individually or as part of a collection.
All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.

How to Cite

[1]
“Optical characterization of tin oxide-coated porous silicon”, Proc. SPP, vol. 33, no. 1, pp. SPP–2015, Jun. 2015, Accessed: Mar. 26, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/1105