Optical characterization of tin oxide-coated porous silicon

Authors

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

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Issue

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

Article ID

SPP-2015-5B-03

Section

Condensed Matter Physics and Materials Science

Published

2015-06-03

How to Cite

[1]

JM Lopez, AI Cafe, LIM Ballesteros, L Lopez, MAB Faustino, AA Salvador, and AS Somintac, Optical characterization of tin oxide-coated porous silicon, Proceedings of the Samahang Pisika ng Pilipinas 33, SPP-2015-5B-03 (2015). URL: https://proceedings.spp-online.org/article/view/1105.