Zinc oxide nanowire with high sensitivity has been demonstrated to detect chemical substances. However, the sensitivity of ZnO gas sensor is dependence of different working temperatures, which restrict use environment. To improve the senor performance, a self-powered and sensing module combined with thermoelectric chip and gas sensor will be designed and fabricated in this study. Furthermore, we adopt a BiFeO3-coated ZnO nanowire as sensor source. In this work, the ZnO nanowires were growth by low-temperature hydrothermal process and followed by sputtered BFO covering. From the ammonia gas-sensing results, we fi nd that the BFO-coated ZnO nanowire array shows much faster response time and better sensitivity, compared to control ZnO nanowire array.
為了持續優化網站功能與使用者體驗,本網站將Cookies分析技術用於網站營運、分析和個人化服務之目的。
若您繼續瀏覽本網站,即表示您同意本網站使用Cookies。