Synthesis Of Metal Oxide Nanostructure And Its
Characterization As Gas Pollutant Monitoring
Author(s)
B. Yuliarto, M. Faizal, M. Iqbal, S. Julia & T. Nugraha
Abstract
The characteristics of metal oxide thin films have been studied for gas pollutant
monitoring systems. The metal oxide sensitive layers of ZnO are deposited by
sol gel method using a chemical bath deposition technique at moderate
temperature. The resulting thin films have been characterized using XRD and
SEM to confirm the surface structure of the film. The scanning electron
microscopy reveals that ZnO thin films have a nanostructure morphology which
is supposed to open a larger area to the gas targeted. The sensor device was
prepared using alumina as a substrate and a gold finger electrode on the top of
the sensors. Gas pollutant monitoring systems have been developed using the
resulting sensor device after the calibrating process. The gas monitoring system
can measure and save the data in the system so that the trend of measured
pollutant can be analyzed for a certain period of time. The design and electronics
structure of the gas pollutant monitoring system in terms of CO emission are
described. This monitoring system can be used as a sensing node and can form a
dense real-time environmental monitoring network.
Keywords: thin film, ZnO, CO, gas pollutants, nanostructure, monitoring,
sensors.
1 Introduction
In recent times there have been growing concerns about the consequences of air
pollution on our atmosphere. This growing awareness is enhanced because
atmospheric pollution is not only an environmental problem but also induces
serious health hazards on humans. Air pollution emerged around the world in the
last decade as a result of explosive industrial growth. After that, efforts were
Keywords
thin film, ZnO, CO, gas pollutants, nanostructure, monitoring,
sensors
Related Book
Other papers in this volume
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