Abstract
A photonic crystal containing a Bragg structure was prepared by applying a computer-generated periodic square current waveform and result in a mirror with high reflectivity in a specific narrow spectral region. This paper describes a method for the fabrication of photonic polymer replicas containing CdSe nanoparticles based on distributed Bragg reflector (DBR) porous silicon (PSi). Well-defined one-dimensional photonic polymethly methacrylate (PMMA) replicas containing CdSe nanoparticles showing a reflectivity at 571 nm and a photoluminescence at 560 nm were successfully obtained by removing the DBR PSi template from the PMMA composite film. XRD measurements indicated that the oxidized DBR PSi was completely removed from the composite films. The photonic polymer replicas exhibited a sharp resonance with a full width at half maximum (FWHM) of 20 nm in the reflectivity spectrum. The optical characteristics of the photonic polymer replicas indicated that the surface of the polymer film had the negative structure of DBR PSi. These replicas were stable in aqueous solutions for several days without any degradation.
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