| Title |
Characteristics of CuO doped WO3 Thick Film for Gas Sensors |
| Authors |
유일(Yu, Il) ; 이돈규(Lee, Don-Kyu) ; 신덕진(Shin, Deuck-Jin) ; 유윤식(Yu, Yoon-Sik) |
| Keywords |
WO_3 ; Cu ; Thick films ; Sensor |
| Abstract |
Recently, due to increase in the usage of toxic gas and inflammability gas, the ability to monitor and precisely measurement of these gases is crucial in preventing the occurrence of various accidents. CuO doped and undoped WO_3 thick films gas sensors were prepared using screen-printing method on alumina substrates. A structural properties of WO_3:CuO thick films had monoclinic phase and triclinic phase of WO_3 together. Sensitivity of WO_3:CuO sensor at 2000 ppm of CO_2 gas and 50 ppm of H_2S gas was investigated. 4 wt% Cu doped WO_3 thick films had the highest sensitivity of CO_2 gas and H_2S gas. |