3차원 ZnO 나노구조체 가스센서
3-dimensional nanostructured ZnO gas sensor
1
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
Due to the high surface-to-volume ratio, the 3-dimensional(3D) nanostructures of metal oxides are regarded as the best candidate materials for the chemical gas sensors. Here we have synthesised flower-like 3D zinc oxide nanostructures through a simple hydrothermal route. Specific surface area of the 3D zinc oxide nanostructures synthesised in different pH values from 9.0 to 12.0 were evaluated by using a BET analyzer and the results were compared with that of a zinc oxide thin film fabricated by rf sputtering. Using interdigitated electrodes, superior CO gas sensing properties of the 3D zinc oxide nanostructures on the ZnO thin film to those of the ZnO thin film were demonstrated.
Abstract
Due to the high surface-to-volume ratio, the 3-dimensional(3D) nanostructures of metal oxides are regarded as the best candidate materials for the chemical gas sensors. Here we have synthesised flower-like 3D zinc oxide nanostructures through a simple hydrothermal route. Specific surface area of the 3D zinc oxide nanostructures synthesised in different pH values from 9.0 to 12.0 were evaluated by using a BET analyzer and the results were compared with that of a zinc oxide thin film fabricated by rf sputtering. Using interdigitated electrodes, superior CO gas sensing properties of the 3D zinc oxide nanostructures on the ZnO thin film to those of the ZnO thin film were demonstrated.
참고문헌 (10)
- Nitta, M, "Propane gas detector using SnO2 doped with Mo,V,Ti,or Nb", J. Electroc hem. Soc, 125, pp.16~76 (1982)
- Nagatani, Y, "Some electrical properties of γ–Fe2O3 ceramics", Jpn. J. Appl. Phys, 22, pp.233~ (1982)
- Oyabu, T, "Sensing characteristics of tin oxide gas sensor", J. Appl. Phys, 53(11), pp.7125~7130 (1982)
- S.-J. Chang, "Highly sensitive ZnO nanowire CO sensors with the adsorption of Au nanoparticles", Nanotechnology, 19, pp.175502~175507 (2008)
- C.-Y. Liu, "Fabrication and CO sensing properties of mesostructured ZnO gas sensors", Journal of The Electrochemical Society, 156(1), pp.J16~J19 (2009)
- T.-J. Hsueh, "ZnO nanowire-based CO sensors prepared at various temperatures", Journal of The Electrochemical Society, 154(12), pp.J393~J396 (2007)
- P. Li, "Synthesis of flower-like ZnO microstructures via a simple solution route", Materials Chemistry and Physics, 106, pp.63~69 (2007)
- 박소정, "졸-겔법으로 증착된 ZnO 나노막대를 이용한 고감도 이산화질소 가스 센서 제작 및 특성 연구", 센서학회지, 17(2), pp.147~150 (2008), 한국센서학회
- J.-M. Jang, "ZnO 3D flower-like nanostructure synthesized on GaN epitaxial layer by simple route hydro thermal process", Journal of Alloys and Compounds, 463, pp.503~510 (2008)
- Sekiguchi T, , Journal of Crystal Growth, 72, pp.214~215 (2000)