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Photonic bandgap of inverse opals prepared from core-shell spheres
In this study, we synthesized monodispersed polystyrene (PS)-silica core-shell spheres with various shell thicknesses for the fabrication of photonic crystals. The shell thickness of the spheres was controlled by various additions of tetraethyl orthosilicate during the shell growth process. The shri...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3503612/ https://www.ncbi.nlm.nih.gov/pubmed/22894600 http://dx.doi.org/10.1186/1556-276X-7-457 |
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author | Liu, Bo-Tau Lin, Ya-Li Huang, Shao-Xian |
author_facet | Liu, Bo-Tau Lin, Ya-Li Huang, Shao-Xian |
author_sort | Liu, Bo-Tau |
collection | PubMed |
description | In this study, we synthesized monodispersed polystyrene (PS)-silica core-shell spheres with various shell thicknesses for the fabrication of photonic crystals. The shell thickness of the spheres was controlled by various additions of tetraethyl orthosilicate during the shell growth process. The shrinkage ratio of the inverse opal photonic crystals prepared from the core-shell spheres was significantly reduced from 14.7% to within 3%. We suspected that the improvement resulted from the confinement of silica shell to the contraction of PS space during calcination. Due to the shell effect, the inverse opals prepared from the core-shell spheres have higher filling fraction and larger wavelength of stop band maximum. |
format | Online Article Text |
id | pubmed-3503612 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Springer |
record_format | MEDLINE/PubMed |
spelling | pubmed-35036122012-11-26 Photonic bandgap of inverse opals prepared from core-shell spheres Liu, Bo-Tau Lin, Ya-Li Huang, Shao-Xian Nanoscale Res Lett Nano Express In this study, we synthesized monodispersed polystyrene (PS)-silica core-shell spheres with various shell thicknesses for the fabrication of photonic crystals. The shell thickness of the spheres was controlled by various additions of tetraethyl orthosilicate during the shell growth process. The shrinkage ratio of the inverse opal photonic crystals prepared from the core-shell spheres was significantly reduced from 14.7% to within 3%. We suspected that the improvement resulted from the confinement of silica shell to the contraction of PS space during calcination. Due to the shell effect, the inverse opals prepared from the core-shell spheres have higher filling fraction and larger wavelength of stop band maximum. Springer 2012-08-15 /pmc/articles/PMC3503612/ /pubmed/22894600 http://dx.doi.org/10.1186/1556-276X-7-457 Text en Copyright ©2012 Liu et al.; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Nano Express Liu, Bo-Tau Lin, Ya-Li Huang, Shao-Xian Photonic bandgap of inverse opals prepared from core-shell spheres |
title | Photonic bandgap of inverse opals prepared from core-shell spheres |
title_full | Photonic bandgap of inverse opals prepared from core-shell spheres |
title_fullStr | Photonic bandgap of inverse opals prepared from core-shell spheres |
title_full_unstemmed | Photonic bandgap of inverse opals prepared from core-shell spheres |
title_short | Photonic bandgap of inverse opals prepared from core-shell spheres |
title_sort | photonic bandgap of inverse opals prepared from core-shell spheres |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3503612/ https://www.ncbi.nlm.nih.gov/pubmed/22894600 http://dx.doi.org/10.1186/1556-276X-7-457 |
work_keys_str_mv | AT liubotau photonicbandgapofinverseopalspreparedfromcoreshellspheres AT linyali photonicbandgapofinverseopalspreparedfromcoreshellspheres AT huangshaoxian photonicbandgapofinverseopalspreparedfromcoreshellspheres |