Carbon Nanotubes and Graphene Oxide Gas Sensor
Nowadays, Carbon Nanotubes (CNTs) and Graphene Oxide (GO) have attracted enormous interest in various applications such as thin film transistors, chemical sensors, field emission devices, and transparent conductive coatings. In this book, thin films of CNT and GO networks were fabricated as a two-terminal device for gas sensing applications. The multi-walled carbon nanotubes (MWCNTs) solutions were acid-treated by attaching carboxylic acid (-COOH) groups. The single-walled carbon nanotubes (SWCNTs) suspension was produced using an organic dye to improve its solubility in water. The GO suspension was produced by the chemical exfoliation of graphite. The basal planes of GO were decorated by oxygen functional groups. The electrical measurement was conducted to investigate the film resistance as the solution concentration increased. The extreme sensitivity to changes in CNTs and GO makes them an ideal candidate for gas-sensing applications. The devices show a tremendous sensitivity towards NO, and NH, gases.
Instructor Biography
Muhammad Mahyiddin Ramli, PhD is an Associate Professor at the Institute of Nano Electronic Engineering (INEE), Universiti Malaysia Perlis (UniMAP). Areas of his research include graphene synthesis and characterisation for gas sensors and biomedical devices. Over 150 technical publications are published, including journals, books, and proceedings. Besides, numerous awards have been won, including Gold and Special Awards in numerous exhibitions.
Norizah Abd Karim, PhD, is a Senior Lecturer at the Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP). Areas of research include graphite synthesis, graphene synthesis, and characterization. Over 20 technical publications are published, including proceedings and journals. Besides, numerous awards have been won, including Gold Medals and Special Awards in numerous invention exhibitions.
Nurul Huda Osman, PhD, is a Senior Lecturer at the Department of Physic, Faculty of Science, Universiti Putra Malaysia (UPM). Areas of research include microwave engineering, the fundamentals of sensors, and instrumentation. Over 20 technical publications are published, including proceedings and high-impact journals.
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