SnO₂: F film on ZnO nanorods as ammonia and humidity sensor

Authors

Christopher Jude T. Vergara ⋅ PH National Institute of Physics, University of the Philippines Diliman
Laureen Ida M. Ballesteros ⋅ PH National Institute of Physics, University of the Philippines Diliman
Precy Mae Calaque ⋅ PH National Institute of Physics, University of the Philippines Diliman
Armando S. Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

A metal oxide gas sensor composed of zinc oxide (ZnO) nanorod and fluorine-doped tin oxide film (SnO₂:F) was successfully fabricated using spray pyrolysis and hydrothermal method to increase the surface area of the sensor. The gas sensor’s response to ammonia and water vapor was carried out using a static sensing setup. Increasing concentrations of ammonia (6, 11, 17 ppm) and water vapor (14, 27, 41 ppm) were used. Scanning electron microscope (SEM) images confirmed the large surface area through the presence of the grown ZnO nanorods. The sensor was found to be sensitive to both ammonia and water vapor.

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Issue

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

Article ID

SPP-2015-PB-25

Section

Poster Session PB

Published

2015-06-03

How to Cite

[1]

CJT Vergara, LIM Ballesteros, PM Calaque, and AS Somintac, SnO2: F film on ZnO nanorods as ammonia and humidity sensor, Proceedings of the Samahang Pisika ng Pilipinas 33, SPP-2015-PB-25 (2015). URL: https://proceedings.spp-online.org/article/view/1231.