Nanoparticle One-Dimensional Photonic-Crystal Dye Laser

Year: 2009

Authors: Scotognella F., Puzzo DP., Monguzzi A., Wiersma D., Maschke D., Tubino R., Ozin GA.

Autors Affiliation: Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada;
Univ Milano Bicocca, Dipartimento Sci Mat, I-20125 Milan, Italy;
CNR, European Lab Nonlinear Spect, I-50019 Florence, Italy;
CNR, Natl Inst Phys Matter, I-50019 Florence, Italy;
Johannes Gutenberg Univ Mainz, Inst Inorgan & Analyt Chem, D-55099 Mainz, Germany

Abstract: The stimulated emission from an organic dye adsorbed within the void network of a NP 1D (photonic crystals) PC, was studied. The nanoparticle one-dimensional photonic crystals (NP 1DPCs) were assembled by polyelectrolyte-assisted layer-by-layer deposition with subsequent calcination of the films to remove the polymer components. Each layer was prepared by spin-coating a block-copolymer-templated titania- or silica-based sol solution followed by a calcination step. To maximize the photonic-crystal effect, PCs consisting of eleven bilayers, compared to the four-bilayer NP 1D PCs, were fabricated with good structural and optical quality over 2 cm ×2 cm areas. The effective refractive index of the SiO2 and TiO2 layers and the TiO2 layers was determined by spectroscopic ellipsometry to be 1.21 and 1.80 at 598 nm. A central feature of the 1D PC employed in this proof-of-concept study is the nanoparticle-generated porosity, which enables the uptake of a high loading of R6G dye.

Journal/Review: SMALL

Volume: 5 (18)      Pages from: 2048  to: 2052

More Information: G.A.O. is Government of Canada Research Chair in Materials Chemistry and Nanochemistry. He is deeply grateful to the Natural Sciences and Engineering Research Council of Canada NSERC for generous and sustained funding of his research. The authors acknowledge Ilia Gourevich for aiding with microscopy. F.S. and R.T. acknowledge the European Commission (Marie-Curie RTN NANOMATCH, grant no. MRTN-CT-2006-035884) for financial support. F.S. and D.P.P. contributed equally to this work.
KeyWords: Bi-layer; Colloidal nanoparticles; Effective refractive index; High loadings; Layer by layer deposition; One dimensional photonic crystal; Optical qualities; Organic dye; Polymer components; Proof of concept; Sol solutions; Templated; TiO; Void networks, Calcination; Dye lasers; Hybrid computers; Hybrid systems; Lasers; Microcomputers; Nanoparticles; Organic polymers; Photonics; Polymer films; Refractive index; Silica; Spectroscopic ellipsometry; Titanium dioxide; Titanium oxides, Photonic crystals, coloring agent; nanoparticle, article; laser; photon, Coloring Agents; Lasers; Nanoparticles; Photons
DOI: 10.1002/smll.200900331

Citations: 80
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