الفهرس 
SummaryOnly 14 pages are availabe for public view
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Abstract
The pressing concerns of global warming and climate change have underscored the urgency of addressing these challenges. Gas sensors are emerging as essential tools in the battle against these issues. Notably, carbon dioxide (CO2), which contributes to a significant 22% of global warming, originates from various sources, including industrial processes.
This research focuses on the development of innovative CuO-based and Ba-doped CuO thin-film electrodes tailored for CO2 sensing applications. Rigorous analysis techniques such as X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Energy Dispersive X-ray Spectroscopy (EDX) were harnessed to delve into the composition and morphological features of the nanomaterials. The introduction of dopants induced transformative changes in the films, augmenting surface roughness and particle dimensions and thus intensifying their sensitivity to CO2 levels.
This thesis is structured across five cohesive chapters:
Chapter One: This chapter serves as a comprehensive primer on gas sensors, tracing their historical evolution and categorization. A focused exploration ensues into metal oxide semiconductor (MOX) gas sensors, unraveling their operational mechanisms, the multifarious factors influencing their performance, and their inherent attributes. The discussion further delves into the properties of copper (II) oxide (CuO) and barium (Ba), including their significance in gas sensing applications and the resultant alterations in their properties post-integration into sensing setups. The elucidation extends to encompass the fabrication techniques for nanostructured films, with a spotlight on the successive ionic layer adsorption and reaction (SILAR) method.
Chapter Two: This chapter delves into the intricacies of thin film manufacturing and characterization. The architectural aspects, functional groups, morphological details, and outcome of optical analysis through UV-Vis Spectroscopy are meticulously examined. This entails the judicious integration of analytical tools such as XRD, SEM, and EDX.
Chapter Three: The focal point of this chapter revolves around the fabrication and characterization of CuO and Ba-doped films. An incisive exploration of the gas response mechanism takes center stage, encompassing dynamic response patterns, response times, recovery intervals, repeatability, stability metrics, the influence of temperature, and the distinctive selectivity features of Ba-doped films concerning CO2 gas detection.
Chapter Four: This chapter encapsulates a comprehensive discourse that not only consolidates the findings but also positions them within the broader context of the thesis’s objectives, providing a nuanced interpretation of the research’s significance.
In summation, this thesis embodies a comprehensive journey encompassing the realms of gas sensors, material engineering, characterization techniques, and the intricate dynamics of CO2 detection.