https://scholars.lib.ntu.edu.tw/handle/123456789/630180
標題: | Photochemically-Activated p-Type CuGaO2 Thin Films for Highly-Stable Room-Temperature Gas Sensors | 作者: | Lin, Pei Te Yu, Chih Ying Ho, Sin Huei Pan, Shiuan Wei Jhang, Jyun Siang Zhang, Yi Xun Zhang, Yo Lun Hsieh, Tian Tsz HAO-CHIEN WANG WEN-JENG HSUEH Huang, Chun Ying |
關鍵字: | CuGaO 2 | Gas sensors | Photochemical activation | Sol-Gel coating | 公開日期: | 1-三月-2023 | 出版社: | ELECTROCHEMICAL SOC INC | 卷: | 170 | 期: | 3 | 來源出版物: | Journal of the Electrochemical Society | 摘要: | The photochemical activation process is a promising way to operate metal oxide gas sensors at room temperature. However, this technique is only used in n-type semiconductors. In this study, we report a highly stable p-type copper gallium oxide (CuGaO2) gas sensor fabricated through the facile sol-gel process. The sensor is capable of detecting O3 gas at room temperature, and its gas response can be further enhanced by ultraviolet (UV) activation. The highest gas response of 7.12 to 5 ppm O3 gas at a UV intensity of 10 mW cm−2 is achieved at room-temperature. In addition, the CuGaO2 sensor shows excellent long-term stability, with a degradation of approximately 3% over 90 days. These results strongly support the solution-processed CuGaO2 as a good candidate for room-temperature gas sensors. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/630180 | ISSN: | 00134651 | DOI: | 10.1149/1945-7111/acc42f |
顯示於: | 工程科學及海洋工程學系 |
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