No CrossRef data available.
Article contents
Synthesis of Silicon Based Opal by Chemical Reduction of Silica Opal
Published online by Cambridge University Press: 26 February 2011
Abstract
By reduction of SiO2 opal in atmosphere of nitrogen (80%)-helium (15%)-hydrogen (5%) gas mixture at various temperatures we tuned the dielectric contrast ratio and band gap of photonic crystal (PC) up to 10 %. The SEM images dose not show any detectible change in lattice parameters, whereas the elemental analysis shows remarkable decrease of oxygen content. The shift of reflectance spectra toward the long wavelength and increase of transmission in infrared region confirm the redaction of silica and partial transformation to the silicon.
Keywords
- Type
- Research Article
- Information
- Copyright
- Copyright © Materials Research Society 2007