Terahertz emission of zinc oxide-coated silicon

Authors

Maria Angela B. Faustino ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Lorenzo P. Lopez, Jr. ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Vladimir M. Sarmiento ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Alexander De los Reyes ⋅ PH National Institute of Physics, University of the Philippines Diliman
Armando S. Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman
Elmer S. Estacio ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

We have shown that increasing the optical absorption of silicon via spray pyrolysis of Zinc oxide increases its terahertz emission by ~2.6 times. Results also show that aluminum doping on Zinc oxide increases its reflectivity, hence decreasing its optical absorption resulting to lower emission of terahertz radiation. The measured reflectance of the samples are 66% for the bulk Silicon, 4% for the Silicon deposited with Zinc oxide, and 57% for the aluminum-doped Zinc oxide on Silicon; corresponding to peak-to-peak terahertz time domain spectra signals of 3.86 pA, 9.985 pA, and 5 pA.

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Issue

2016: Proceedings of the 34th Samahang Pisika ng Pilipinas Physics Conference

Physics at the front and center: Strengthening core values in physics research
18–21 August 2016, University of the Philippines Visayas, Iloilo City

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Article ID

SPP-2016-5A-05

Section

Optics and Photonics

Published

2016-08-18

How to Cite

[1]

MAB Faustino, LP Lopez, VM Sarmiento, A De los Reyes, AS Somintac, and ES Estacio, Terahertz emission of zinc oxide-coated silicon, Proceedings of the Samahang Pisika ng Pilipinas 34, SPP-2016-5A-05 (2016). URL: https://proceedings.spp-online.org/article/view/SPP-2016-5A-05.