Fluorine-doped SnO2 thin film as chemiresistive gas sensor for room temperature monitoring of fish freshness

Authors

  • Laureen Ida Monzon Ballesteros ⋅ PH Material Science and Engineering Program, University of the Philippines Diliman
  • Christopher Jude Vergara ⋅ PH Material Science and Engineering Program, University of the Philippines Diliman
  • Armando Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman

DOI:

https://doi.org/10.20526/pisika.01a18.10

Abstract

Pure and fluorine-doped tin oxide films were prepared using nebulized spray pyrolysis. X-ray diraction (XRD) and scanning electron microscopy (SEM) analyses confirmed the nanocrystalline tetragonal structure of the prepared films. The gas sensing response of the films towards actual fish vapors of varying freshness level was then investigated. Higher sensitivity was observed in the fluorinated tin oxide film compared to the undoped film. Moreover, the degree of the films sensitivity was observed to be proportional to the extent of
the fish spoilage. The results suggest that fluorinated tin oxide can be applied for room temperature monitoring of fish freshness.

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Issue

Vol. 1 No. 1 (2018)
Message from the Editor-in-Chief

Welcome to the maiden online issue of PISIKA.

PISIKA is a bi-annual online journal that was conceived to provide physicists and physics educators, both from the Philippines and abroad, an accessible reference and online resource.  The name “PISIKA” pays homage to the quarterly journal previously published by the Samahang Pisika ng Pilipinas (SPP), which was launched in October 2007.  With this online journal, it is hoped that the dissemination of research output and sharing of scientific knowledge will be more expedient.

The articles appearing in this issue are select, peer-reviewed papers presented during the 36th SPP Physics Conference held in Palawan, Philippines from June 6 to 9, 2018.  In the future, this online journal will welcome submission of articles from the following research fields: astrophysics and atmospheric physics, complex systems, computational physics, condensed matter physics, instrumentation physics, lasers and their applications, liquid crystals, materials science, mathematical physics, optics and photonics, physics in medicine and biology, plasma physics, signal and image processing, theoretical physics, and physics education research, among others.

 On behalf of the interim Editors-in-Chief, I would like to thank the members of the advisory panel and topical editors composed of experts in the fields of Photonics, Material Science, High Energy Physics, Computational Physics and Plasma Physics.  PISIKA, as the Philippines’ first online physics journal is a testament to their invaluable contributions. 

Thank you very much.


Interim Editor in Chief

About the Cover:

Monthly averaged Tropical Rainfall Measuring Mission (TRMM) satellite images for the years 2008-2017. See article by Archie Ilarian Veloria and co-authors, DOI: 10.20526/pisika.01a18.01. Cover art by Miguel Y. Bacaoco.

 

Article ID

10

Section

Articles

Published

2019-01-03

How to Cite

[1]
LIM Ballesteros, CJ Vergara, and A Somintac, Fluorine-doped SnO2 thin film as chemiresistive gas sensor for room temperature monitoring of fish freshness, PISIKA - Journal of the Physics Society of the Philippines 1, 10 (2019). URL: https://paperview.spp-online.org/pisika/article/view/01a18.10.