Metal Oxide Thin Films for Room-Temperature Gas Sensing and Electrochromic Devices
This community develops metal oxide thin films and nanomaterials for detecting specific gases at room temperature and for creating electrochromic devices that change color in response to electrical signals.
The work centers on synthesizing and characterizing thin films of tin oxide, tungsten oxide, zinc oxide, and nickel oxide, often combined with graphene or reduced graphene oxide. Researchers focus on enhancing sensitivity for targets such as nitrogen dioxide, hydrogen, ammonia, and hydrogen sulfide, frequently using spray pyrolysis and other deposition methods. A significant portion of the literature addresses the mechanism of oxygen vacancies in these oxides to improve response times and selectivity. While gas sensing dominates, a distinct strand of research applies similar oxide materials to electrochromic windows and displays, utilizing the same thin-film deposition techniques to achieve reversible color changes for smart building applications.
The largest share of the community's output is found in tin research, accounting for 6.4% of all tin research, and 4,657 papers here. Tungsten research follows with a 5.9% share, contributing 3,916 papers to this group.
The community comprises 25,802 papers, publishing most frequently in Sensors and Actuators B: Chemical, Journal of Alloys and Compounds, and Applied Surface Science.
Recent work continues to focus on integrating these sensors into flexible and wearable formats, including hydrogel-based humidity sensors and 3D-printed electrochromic displays. Newer studies also explore the use of MXenes and transition metal dichalcogenides as alternative sensing materials, alongside advanced computational models for optimizing sensor array performance.