Luminescence properties induced by sintering of silica nanoparticles

Franco Mario Gelardi; Lavinia Vaccaro; Luisa Spallino; Roberto Boscaino; Marco Cannas; Chiara Cangialosi

Luminescence properties induced by sintering of silica nanoparticles

Franco Mario Gelardi, Lavinia Vaccaro, Luisa Spallino, Roberto Boscaino, Marco Cannas, Chiara Cangialosi

Research output: Contribution to conference › Other

Abstract

The effect of sintering on the optical properties of silica nanoparticles, a mean diameter of ~14 nm, are investigated by absorption and luminescence experiments. The sintering is induced by a thermal treatment of 1000 °C for 272 hours; after that the sample is transparent, and emits a bright luminescence under UV excitation. Time resolved photoluminescence spectra excited by a tunable laser source allows to evidence four bands around 2.0 eV, 2.4 eV, 2.7 eV and 3.4 eV, peculiar to defects induced by the sintering.

Original language	English
Number of pages	2
Publication status	Published - 2014

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@conference{285363f83906450b8b55f255c64ad626,

title = "Luminescence properties induced by sintering of silica nanoparticles",

abstract = "The effect of sintering on the optical properties of silica nanoparticles, a mean diameter of ~14 nm, are investigated by absorption and luminescence experiments. The sintering is induced by a thermal treatment of 1000 °C for 272 hours; after that the sample is transparent, and emits a bright luminescence under UV excitation. Time resolved photoluminescence spectra excited by a tunable laser source allows to evidence four bands around 2.0 eV, 2.4 eV, 2.7 eV and 3.4 eV, peculiar to defects induced by the sintering.",

author = "Gelardi, {Franco Mario} and Lavinia Vaccaro and Luisa Spallino and Roberto Boscaino and Marco Cannas and Chiara Cangialosi",

year = "2014",

language = "English",

}

TY - CONF

T1 - Luminescence properties induced by sintering of silica nanoparticles

AU - Gelardi, Franco Mario

AU - Vaccaro, Lavinia

AU - Spallino, Luisa

AU - Boscaino, Roberto

AU - Cannas, Marco

AU - Cangialosi, Chiara

PY - 2014

Y1 - 2014

N2 - The effect of sintering on the optical properties of silica nanoparticles, a mean diameter of ~14 nm, are investigated by absorption and luminescence experiments. The sintering is induced by a thermal treatment of 1000 °C for 272 hours; after that the sample is transparent, and emits a bright luminescence under UV excitation. Time resolved photoluminescence spectra excited by a tunable laser source allows to evidence four bands around 2.0 eV, 2.4 eV, 2.7 eV and 3.4 eV, peculiar to defects induced by the sintering.

AB - The effect of sintering on the optical properties of silica nanoparticles, a mean diameter of ~14 nm, are investigated by absorption and luminescence experiments. The sintering is induced by a thermal treatment of 1000 °C for 272 hours; after that the sample is transparent, and emits a bright luminescence under UV excitation. Time resolved photoluminescence spectra excited by a tunable laser source allows to evidence four bands around 2.0 eV, 2.4 eV, 2.7 eV and 3.4 eV, peculiar to defects induced by the sintering.

UR - http://hdl.handle.net/10447/96330

M3 - Other

ER -

Luminescence properties induced by sintering of silica nanoparticles

Abstract

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