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  • 09월 20일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제126회 대한화학회 학술발표회 및 총회 Highly sensitive gas sensor using graphene doped with ZnO nanosheet for detection of NO2 gas

등록일
2020년 9월 16일 14시 24분 13초
접수번호
1083
발표코드
ENVR.P-551 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 21일(수) 17:00~17:30
발표형식
포스터
발표분야
Environmental Energy
저자 및
공동저자
Lee Soyoung, Yun Sik Nam1, Kang-Bong Lee2,*
National Agenda Research Division , Korea Institute of Science and Technology, Korea
1Advanced Analysis Center, Korea Institute of Science and Technology, Korea
2Green City Technology Institute, Korea Institute of Science and Technology, Korea
The current research is focusing on the charateristic of ZnO nanosheets on graphene using spin coating technique for the fabrication of NO2 gas sensors. Physical properties for graphene composite doped with ZnO nanosheet have been intensively investigated using electron microscopy and various spectroscopies. Doping with ZnO nano sheets induced to change electronic properties of graphene, and it led to alter drastically resistivity of graphene in the presence of NO2 gas. Graphene doped with ZnO nano sheets demonstrated the ability to sense NO2 gas sensitively with the saturation time is around 400s, and with the limit of detection being below 0.15ppm. In comparison with other gases this sensor has very good selectivity and repeatedly.

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