A solution-processed p-type CuAlO2 thin film and its applications in gas sensing at room temperature
Journal
Proceedings of SPIE - The International Society for Optical Engineering
Journal Volume
12887
Start Page
128870L
ISBN (of the container)
9781510670341
ISBN
9781510670341
Date Issued
2024-03-15
Author(s)
DOI
10.1117/12.3000760
Abstract
In this report, we present a remarkably sensitive and stable gas sensor based on solution-processed p-type copper aluminum oxide (CuAlO2), which can sense O3 gas at room temperature. In addition, the sensitivity can be further enhanced through exposure to ultraviolet (UV) radiation. The optimal gas response of 12.32 can be achieved under UV illumination of 20 mW/cm2 at room temperature. More importantly, the CuAlO2 sensor exhibits outstanding long-term stability, with a deterioration of only ~10% over a period of 90 days. These results strongly suggest that solution-processed CuAlO2 is a promising candidate for gas sensors designed to operate at room temperature.
Event(s)
Oxide-Based Materials and Devices XV 2024, San Francisco, 29 January 2024 through 1 February 2024, Code 200392
Publisher
SPIE
Type
conference paper