Journal
THIN SOLID FILMS
Volume 495, Issue 1-2, Pages 11-17Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2005.08.234
Keywords
mesoporous silica; films; phase transformation; decomposition; structure-directing agent; Brij-30
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We report the fabrication of cubic laid mesoporous silica thin films via a new approach involving mesophase transformation induced by the degradation of organic moiety from the film during calcination. The mesoporous silica film is synthesized using tetraethyl orthosilicate (TEOS) as a silica source and a diblock copolymer (Brij-30) as a structure-directing agent under acidic conditions. Control of mesophase selection and its orientation in a mesoporous silica thin film appears to be possible by the induced phase transformation approach reported here. (c) 2005 Elsevier B.V. All rights reserved.
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