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Authors: Ernesto Jimenez-Villar 1 ; Valdeci Mestre 2 ; Paulo C. De Oliveira 2 ; Wagner M. Faustino 2 and Gilberto F. De Sá 3

Affiliations: 1 Universidade Federal de Pernambuco and Universitat de València, Spain ; 2 Universidade Federal da Paraíba, Brazil ; 3 Universidade Federal de Pernambuco, Brazil

Keyword(s): Core-Shell Nanoparticles, Random Laser, TiO2@Silica Nanoparticles, TiO2 Dye Photodegradation.

Related Ontology Subjects/Areas/Topics: Mobile Software and Services ; Optical Materials ; Optics ; Photonics, Optics and Laser Technology ; Telecommunications ; Wireless Information Networks and Systems

Abstract: Here we have studied a novel scattering medium for random laser. This medium is composed of TiO2@Silica nanoparticles suspended in an ethanol solution of rhodamine 6G. TiO2 nanoparticles with average diameter of 0.41 μm were coated with a silica shell of ~40 nm thickness. Random laser study comparing TiO2 and TiO2@Silica nanoparticles suspended in ethanol solution of rhodamine 6G was performed. The study showed a high efficiency, low threshold, narrower bandwidth and lower photodegradation for TiO2@Silica system. Optical and chemical stability has been combined by coating TiO2 nanoparticles with a silica shell of ~40nm thickness.

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Paper citation in several formats:
Jimenez-Villar, E.; Mestre, V.; C. De Oliveira, P.; M. Faustino, W. and F. De Sá, G. (2014). High Efficiency and Low Photodegradation in Random Laser, using Novel TiO2@Silica Nanoparticles. In Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS; ISBN 978-989-758-008-6; ISSN 2184-4364, SciTePress, pages 26-32. DOI: 10.5220/0004711700260032

@conference{photoptics14,
author={Ernesto Jimenez{-}Villar. and Valdeci Mestre. and Paulo {C. De Oliveira}. and Wagner {M. Faustino}. and Gilberto {F. De Sá}.},
title={High Efficiency and Low Photodegradation in Random Laser, using Novel TiO2@Silica Nanoparticles},
booktitle={Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS},
year={2014},
pages={26-32},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004711700260032},
isbn={978-989-758-008-6},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS
TI - High Efficiency and Low Photodegradation in Random Laser, using Novel TiO2@Silica Nanoparticles
SN - 978-989-758-008-6
IS - 2184-4364
AU - Jimenez-Villar, E.
AU - Mestre, V.
AU - C. De Oliveira, P.
AU - M. Faustino, W.
AU - F. De Sá, G.
PY - 2014
SP - 26
EP - 32
DO - 10.5220/0004711700260032
PB - SciTePress

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