Metal Oxide Based Optical Fiber for Methane Gas Detection

Nor Akmar Mohd Yahya, Siti Azlida Ibrahim, Norizah Abdul Rahman, Mohd Adzir Mahdi, Mohd Hanif Yaacob


Semiconductor metal oxide (SMO) as a sensing layer for gas detection has been widely used. Many researches have been performed to enhance the sensing performance including its sensitivity, reliability and selectivity. Electrical sensors that use resistivity as an indicator of its sensing are popular and well established. However, the optical based sensor is still much to explore in detecting gas. By integrating it with SMO, the sensor offers good alternative to overcome some drawbacks from electrical sensors.


Gas Sensor, Metal Oxide, Methane

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