完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Ting, CC | en_US |
dc.contributor.author | Chen, SY | en_US |
dc.date.accessioned | 2014-12-08T15:43:48Z | - |
dc.date.available | 2014-12-08T15:43:48Z | - |
dc.date.issued | 2001-06-01 | en_US |
dc.identifier.issn | 0884-2914 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/29614 | - |
dc.description.abstract | TiO2 thin films prepared by metalorganic decomposition (MOD-TIO,) and sol-gel processes (SG-TiO2) were investigated in terms of the anatase-to-rutile phase transformation and microstructural evolution. It was found that the chemical reactivity of the ligand groups initially coordinated on the titanium precursor plays a decisive role in the structure development of as-deposited SG- and MOD-TiO2 films. MOD-TiO2 films consist of small aggregated particles and therefore, tend to coalesce together to form an inhomogeneous microstructure during the anatase-to-rutile phase transformation. On the other hand, SG-TiO2 films consist of uniform large particles that tend to grow homogeneously. MOD-TiO2 films showed a higher crystallization temperature than the SG-TiO2 films but the temperature of the anatase-to-rutile phase transformation is much lower in MOD- (approximately 775 degreesC) as compared to SG-TIO, films (approximately 930 degreesC). The activation energy (Q) was estimated as 524 and 882 kJ/mol for the MOD- and SG-TIO, films, respectively, The lower transformation temperature and activation energy in MOD-TiO2 films were due to smaller grain size and more potential nucleation sites existing in the un-transformed MOD-TiO2 film structure, which can accelerate the rate of anatase-to-rutile transformation. | en_US |
dc.language.iso | en_US | en_US |
dc.title | Influence of ligand groups in Ti precursors on phase transformation and microstructural evolution of TiO2 thin films prepared by the wet chemical process | en_US |
dc.type | Article | en_US |
dc.identifier.journal | JOURNAL OF MATERIALS RESEARCH | en_US |
dc.citation.volume | 16 | en_US |
dc.citation.issue | 6 | en_US |
dc.citation.spage | 1712 | en_US |
dc.citation.epage | 1719 | en_US |
dc.contributor.department | 材料科學與工程學系 | zh_TW |
dc.contributor.department | Department of Materials Science and Engineering | en_US |
dc.identifier.wosnumber | WOS:000169206600025 | - |
dc.citation.woscount | 16 | - |
顯示於類別: | 期刊論文 |