Please use this identifier to cite or link to this item: https://doi.org/10.1021/la053470l
Title: From planar defect in opal to planar defect in inverse opal
Authors: Wang, L.
Yan, Q. 
Zhao, X.S. 
Issue Date: 11-Apr-2006
Source: Wang, L., Yan, Q., Zhao, X.S. (2006-04-11). From planar defect in opal to planar defect in inverse opal. Langmuir 22 (8) : 3481-3484. ScholarBank@NUS Repository. https://doi.org/10.1021/la053470l
Abstract: We demonstrate a facile method of fabricating opal and inverse opal structures with a planar defect. A single layer of silica beads was embedded into polystyrene opals by combining an inward-growing self-assembly method with spin-coating technique. After the infiltration of silica followed by the removal of the polystyrene beads by calcination, an inverted structure was obtained. The silica beads were connected together by the infiltrated silica, thus a solid silica phase with the silica beads as a planar defect embedded in the inverse silica opal was obtained. The thickness of the defect layer can be adjusted by changing the size of the silica beads. Scanning electron microscope images showed the good quality of the crystal and the uniformity of the defect layer. Optical transmission spectra indicated the existence of a defect state induced by the defect layer in both the opal and inverse opal structures. High-cost techniques such as lithography and chemical vapor deposition are not involved in the fabrication of inverse opals with planar defects. © 2006 American Chemical Society.
Source Title: Langmuir
URI: http://scholarbank.nus.edu.sg/handle/10635/63953
ISSN: 07437463
DOI: 10.1021/la053470l
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

38
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

29
checked on Nov 21, 2017

Page view(s)

29
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.