Please use this identifier to cite or link to this item:
http://hdl.handle.net/10261/21745
Share/Export:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Title: | Optical and morphological study of disorder in opals |
Authors: | Palacios-Lidón, E.; Juárez, Beatriz H.; Castillo Martínez, E.; López, Cefe CSIC ORCID | Keywords: | Polymer films Photonic crystals Particle size Impurity distribution Reflectivity Vacancies (crystal) |
Issue Date: | 1-Mar-2005 | Publisher: | American Institute of Physics | Citation: | Journal of Applied Physics 97(6): 063502 (2005) | Abstract: | An optical and morphological study has been carried out to understand the role of intrinsic defects in the optical properties of opal-based photonic crystals. By doping poly(methylmethacrylate) (PMMA) thin-film opals with larger polystyrene (PS) spheres, structural disorder has being generated perturbing the PMMA matrix periodicity. It is shown that this disorder dramatically affects the optical response of the system worsening its photonic properties. It has been found that the effect of doping is highly dependent not only on the concentration but also on the relative size of the dopant with reference to the matrix. Through a detailed scanning electron microscopy inspection, the sort of structural defects involved, derived from the different particle size used, has been characterized. A direct relationship between the observed optical response with the different perturbations generated in the lattice has been found. In addition, from this study it can be concluded that it is possible to grow high quality alloyed photonic crystals, exhibiting intermediate photonic properties between pure PMMA and pure PS opals by simple sphere size matching and variation of the relative concentration of both components. | Description: | 7 pages, 8 figures, 2 tables.-- PACS: 42.70.Qs; 78.66.Qn; 68.55.Jk; 68.55.Ln; 68.35.Bs; 61.72.Ji; 61.72.Ss; 61.72.Hh; 68.37.Hk; 78.20.Ci | Publisher version (URL): | http://dx.doi.org/10.1063/1.1851014 | URI: | http://hdl.handle.net/10261/21745 | DOI: | 10.1063/1.1851014 | ISSN: | 0021-8979 |
Appears in Collections: | (ICMM) Artículos |
Show full item record
CORE Recommender
SCOPUSTM
Citations
54
checked on Apr 18, 2024
WEB OF SCIENCETM
Citations
53
checked on Feb 27, 2024
Page view(s)
365
checked on Apr 19, 2024
Google ScholarTM
Check
Altmetric
Altmetric
WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.