DC Field | Value | Language |
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dc.date.accessioned | 2016-04-01T08:54:00Z | - |
dc.date.available | 2016-04-01T08:54:00Z | - |
dc.date.issued | 2009-05 | - |
dc.identifier.citation | MATERIALS LETTERS | - |
dc.identifier.citation | v.63 | - |
dc.identifier.citation | no.12 | - |
dc.identifier.citation | pp.1047-1050 | - |
dc.identifier.issn | 0167-577X | - |
dc.identifier.other | 2009-OAK-0000016514 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/29012 | - |
dc.description.abstract | Polyhedral nanocrystals of alpha-Fe2O3 are successfully synthesized by annealing FeCl3 on silicon substrate at 1000 degrees C in the presence of H-2 gas diluted with argon (Ar). Uniformly shaped polyhedral nanoparticles (diameter -50-100 nm) are observed at 1000 degrees C and gases flow rate such as | - |
dc.description.abstract | Ar=200 ml/min and H-2 = 150 ml/min. Non-uniform shaped nanoparticles (diameter similar to 20-70 nm) are alsoobserved at an annealing temperature of 950 degrees C with lower gases flow rate (Ar = 100 ml/min and H2 = 75 ml/min). Nanoparticles are characterized in detail by field-emission electron microscopy (FE-SEM). energy dispersive X-ray (EDX) and high resolution transmission electron microscopy (HRTEM) techniques. HRTEM study shows well resolved (110) fringes corresponding to alpha-Fe2O3, and selected area diffraction pattern (SADP) confirms the crystalline nature of alpha-Fe2O3 polyhedral nanoparticles. It is observed that polyhedral formation of alpha-Fe2O3 nanocrystals depends upon annealing temperature and the surface morphology highly rely on the gas flow rate inside the reaction chamber. (C) 2009 Elsevier B.V. All rights reserved. | - |
dc.description.statementofresponsibility | X | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | Nanomaterials | - |
dc.subject | Crystal structure | - |
dc.subject | Annealing temperature | - |
dc.subject | Polyhedral | - |
dc.subject | Gas flow | - |
dc.subject | MAGNETIC-PROPERTIES | - |
dc.subject | COPT3 NANOCRYSTALS | - |
dc.subject | SIZE CONTROL | - |
dc.subject | PARTICLES | - |
dc.subject | UNIFORM | - |
dc.subject | MORPHOLOGY | - |
dc.subject | NANOWIRES | - |
dc.subject | NANORODS | - |
dc.subject | GROWTH | - |
dc.subject | ARRAYS | - |
dc.title | Preparation and characterization of alpha-Fe2O3 polyhedral nanocrystals via annealing technique | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/J.MATLET.200 | - |
dc.relation.volume | 63 | - |
dc.relation.issue | 12 | - |
dc.relation.startpage | 1047 | - |
dc.relation.lastpage | 1050 | - |
dc.publisher.location | NE | - |
dc.relation.journal | MATERIALS LETTERS | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.docType | Article | - |
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