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DC Field | Value | Language |
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dc.citation.endPage | 121 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 116 | - |
dc.citation.title | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.volume | 149 | - |
dc.contributor.author | Moon, Hi Gyu | - |
dc.contributor.author | Shim, Young-Seok | - |
dc.contributor.author | Jang, Ho Won | - |
dc.contributor.author | Kim, Jin-Sang | - |
dc.contributor.author | Choi, Kyoung Jin | - |
dc.contributor.author | Kang, Chong-Yun | - |
dc.contributor.author | Choi, Ji-Won | - |
dc.contributor.author | Park, Hyung-Ho | - |
dc.contributor.author | Yoon, Soek-Jin | - |
dc.date.accessioned | 2023-12-22T07:06:29Z | - |
dc.date.available | 2023-12-22T07:06:29Z | - |
dc.date.created | 2014-10-22 | - |
dc.date.issued | 2010-08 | - |
dc.description.abstract | We report the fabrication of a highly sensitive gas sensor based on a network of nanostructured TiO2 hollow hemispheres (NTHH). O-2 plasma etching induces cross-linking of hexagonal-close-packed polystyrene array, which is adopted as a template substrate for room-temperature deposition of TiO2 thin film. High-temperature calcination effectively removes polystyrene template beads and promotes crystallization of TiO2, finally producing cross-linked NTHH via nanobridges. The gas-sensing capability of a NTHH-based sensor is demonstrated using 1-500 ppm CO. Our sensor exhibits a very high response of 4220% change in resistance when exposed to 500 ppm CO at 250 degrees C, whereas a gas sensor based on a plain TiO2 film shows a 195% change. The high sensitivity of the NTHH-based sensor is attributed to the enhanced gas sensing performance of the narrow nanobridges between hollow hemispheres. | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS B-CHEMICAL, v.149, no.1, pp.116 - 121 | - |
dc.identifier.doi | 10.1016/j.snb.2010.06.014 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.scopusid | 2-s2.0-77955473616 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/7592 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=77955473616 | - |
dc.identifier.wosid | 000280916700017 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Highly sensitive CO sensors based on cross-linked TiO2 hollow hemispheres | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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