Tailoring oxygen vacancies and morphology in La-doped CeO2thin films for highly responsive gaseous NH3 sensing at room temperature

Key Points

• Enhanced sensitivity to gaseous NH3 was observed in La-doped CeO2 thin films, demonstrating effective oxygen vacancies.
• The optimized morphology contributes to the remarkable responsiveness at room temperature, crucial for practical applications.
• Assessment using various characterization techniques confirms the link between oxygen vacancies and sensing properties of the thin films.
• This study highlights the potential for tailored materials to improve gaseous sensing technologies in real-world applications.