Highly selective and fast-response NH3 gas sensor based on Ag-doped WO3 thin films prepared by spray pyrolysis

Key Points

• The Ag-doped WO3 thin films exhibit significant selectivity for NH3 gas, outperforming traditional sensors in rapid response.
• The response time for NH3 detection is notably under 10 seconds, showing the potential for immediate applications in various environments.
• Assessment using spray pyrolysis allows for uniform thin film production, contributing to the sensor's efficiency and performance.
• These findings highlight the potential of Ag-doped WO3 in environmental monitoring and indoor air quality management.