Fluorescence resonance energy transfer and surface Plasmon resonance induced enhanced photoluminescence and photoconductivity property of Au-TiO2 metal-semiconductor nanocomposite

S. Majumder; S. K. Jana; K. Bagani; B. Satpati; S. Kumar; S. Banerjee

doi:10.1016/j.optmat.2014.12.001

Fluorescence resonance energy transfer and surface Plasmon resonance induced enhanced photoluminescence and photoconductivity property of Au-TiO₂ metal-semiconductor nanocomposite

S. Majumder, S. K. Jana, K. Bagani, B. Satpati, S. Kumar, S. Banerjee

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

In this manuscript, we have successfully synthesized Au-TiO₂ nanocomposite by sol-gel process. Photoluminescence (PL) and photoconductivity (PC) study have been performed on both bare TiO₂ and Au-TiO₂ composite samples. We observe enhancement of photoluminescence emission in Au-TiO₂ nanocomposite compared to bare TiO₂. The enhanced photoluminescence is ascribed owing to combined influence of fluorescence resonance energy transfer and surface Plasmon resonance effect due to presence of Au nanoparticles in nanocomposite sample. Also this nanocomposite exhibits enhanced UV photocurrent because of fluorescence resonance energy transfer by metallic Au attached with TiO₂. Interfacial charge transfer can also be realized by the electrochemical impedance spectroscopy results.

Original language	English
Pages (from-to)	97-101
Number of pages	5
Journal	Optical Materials
Volume	40
DOIs	https://doi.org/10.1016/j.optmat.2014.12.001
State	Published - 1 Feb 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.

Keywords

Au
Luminescence
Nanocomposites
Photoconductivity
Sol-gel preparation
TiO

Access to Document

10.1016/j.optmat.2014.12.001

Cite this

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title = "Fluorescence resonance energy transfer and surface Plasmon resonance induced enhanced photoluminescence and photoconductivity property of Au-TiO2 metal-semiconductor nanocomposite",

abstract = "In this manuscript, we have successfully synthesized Au-TiO2 nanocomposite by sol-gel process. Photoluminescence (PL) and photoconductivity (PC) study have been performed on both bare TiO2 and Au-TiO2 composite samples. We observe enhancement of photoluminescence emission in Au-TiO2 nanocomposite compared to bare TiO2. The enhanced photoluminescence is ascribed owing to combined influence of fluorescence resonance energy transfer and surface Plasmon resonance effect due to presence of Au nanoparticles in nanocomposite sample. Also this nanocomposite exhibits enhanced UV photocurrent because of fluorescence resonance energy transfer by metallic Au attached with TiO2. Interfacial charge transfer can also be realized by the electrochemical impedance spectroscopy results.",

keywords = "Au, Luminescence, Nanocomposites, Photoconductivity, Sol-gel preparation, TiO",

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T1 - Fluorescence resonance energy transfer and surface Plasmon resonance induced enhanced photoluminescence and photoconductivity property of Au-TiO2 metal-semiconductor nanocomposite

AU - Majumder, S.

AU - Jana, S. K.

AU - Bagani, K.

AU - Satpati, B.

AU - Kumar, S.

AU - Banerjee, S.

PY - 2015/2/1

Y1 - 2015/2/1

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AB - In this manuscript, we have successfully synthesized Au-TiO2 nanocomposite by sol-gel process. Photoluminescence (PL) and photoconductivity (PC) study have been performed on both bare TiO2 and Au-TiO2 composite samples. We observe enhancement of photoluminescence emission in Au-TiO2 nanocomposite compared to bare TiO2. The enhanced photoluminescence is ascribed owing to combined influence of fluorescence resonance energy transfer and surface Plasmon resonance effect due to presence of Au nanoparticles in nanocomposite sample. Also this nanocomposite exhibits enhanced UV photocurrent because of fluorescence resonance energy transfer by metallic Au attached with TiO2. Interfacial charge transfer can also be realized by the electrochemical impedance spectroscopy results.

KW - Au

KW - Luminescence

KW - Nanocomposites

KW - Photoconductivity

KW - Sol-gel preparation

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