Wen-Chun HuangYing LiNian-Ho ChangWei-Jie HongSin-Ying WuSu-Yu LiaoWEN-JENG HSUEHChih-Min WangChun-Ying Huang2024-07-172024-07-172024-10-1509254005https://www.scopus.com/record/display.uri?eid=2-s2.0-85196623449&origin=resultslisthttps://scholars.lib.ntu.edu.tw/handle/123456789/719874Metal-organic frameworks (MOFs) have emerged as promising selective membranes in oxide semiconductor gas sensors. However, their susceptibility to high temperatures poses significant challenges to the long-term stability of gas sensors. This paper proposes a novel approach for improving long-term stability by employing a light-activated technique on amorphous InGaZnO (a-IGZO) films with a ZIF-8 membrane. Under 360 nm LED illumination, UV light can penetrate the ZIF membrane and be absorbed by a-IGZO, leading to a substantial number of photogenerated carriers in the IGZO film for gas reaction. The a-IGZO film with a ZIF-8 membrane shows an excellent selective response for H2 over CO, NO2, and O3. This light-activated film maintains a gas response comparable to that of thermal-activated counterparts while significantly improving its long-term stability. Our findings underscore the potential of light-activated a-IGZO sensors as a platform for future integration with an MOF selective membrane, ensuring long-term stability.falseA-IGZOGas sensorsLight activationMetal-organic frameworksZIF-8[SDGs]SDG7journal article10.1016/j.snb.2024.1361752-s2.0-85196623449