Evidence for enhanced optical properties through plasmon resonance energy transfer in silver silica nanocomposites

Beena Mol; Lija K. Joy; Hysen Thomas; Vinoy Thomas; Cyriac Joseph; T. N. Narayanan; Salim Al-Harthi; N. V. Unnikrishnan; M. R. Anantharaman

doi:10.1088/0957-4484/27/8/085701

Evidence for enhanced optical properties through plasmon resonance energy transfer in silver silica nanocomposites

Beena Mol, Lija K. Joy, Hysen Thomas, Vinoy Thomas, Cyriac Joseph, T. N. Narayanan, Salim Al-Harthi, N. V. Unnikrishnan, M. R. Anantharaman^*

^*Corresponding author for this work

Physics

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

10 Citations (Scopus)

Abstract

Silver nanoparticles were dispersed in the pores of monolithic mesoporous silica prepared by a modified sol-gel method. Structural and microstructural analyses were carried out by Fourier transform infrared spectroscopy and transmission electron microscopy. X-ray photoelectron spectroscopy was employed to determine the chemical states of silver in the silica matrix. Optical absorption studies show the evolution absorption band around 300 nm for silver (Ag) in a silica matrix and it was found to be redshifted to 422 nm on annealing. Photoluminescence studies indicate the presence of various luminescent emitting centers corresponding to silver ions and silver dimers in the SiO₂ matrix. The enhancement of absorption and photoluminescence properties is attributed to plasmon resonance energy transfer from Ag nanoparticles to luminescent species in the matrix.

Original language	English
Article number	085701
Journal	Nanotechnology
Volume	27
Issue number	8
DOIs	https://doi.org/10.1088/0957-4484/27/8/085701
Publication status	Published - Jan 25 2016

Keywords

photoluminescence
plasmon resonance energy transfer
silver silica nanocomposites
surface plasmon resonance

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Bioengineering
General Chemistry
General Materials Science
Electrical and Electronic Engineering

Access to Document

10.1088/0957-4484/27/8/085701

Cite this

@article{b4f2c3762af44179873a716546a8de79,

title = "Evidence for enhanced optical properties through plasmon resonance energy transfer in silver silica nanocomposites",

abstract = "Silver nanoparticles were dispersed in the pores of monolithic mesoporous silica prepared by a modified sol-gel method. Structural and microstructural analyses were carried out by Fourier transform infrared spectroscopy and transmission electron microscopy. X-ray photoelectron spectroscopy was employed to determine the chemical states of silver in the silica matrix. Optical absorption studies show the evolution absorption band around 300 nm for silver (Ag) in a silica matrix and it was found to be redshifted to 422 nm on annealing. Photoluminescence studies indicate the presence of various luminescent emitting centers corresponding to silver ions and silver dimers in the SiO2 matrix. The enhancement of absorption and photoluminescence properties is attributed to plasmon resonance energy transfer from Ag nanoparticles to luminescent species in the matrix.",

keywords = "photoluminescence, plasmon resonance energy transfer, silver silica nanocomposites, surface plasmon resonance",

author = "Beena Mol and Joy, {Lija K.} and Hysen Thomas and Vinoy Thomas and Cyriac Joseph and Narayanan, {T. N.} and Salim Al-Harthi and Unnikrishnan, {N. V.} and Anantharaman, {M. R.}",

note = "Publisher Copyright: {\textcopyright} 2016 IOP Publishing Ltd.",

year = "2016",

month = jan,

day = "25",

doi = "10.1088/0957-4484/27/8/085701",

language = "English",

volume = "27",

journal = "Nanotechnology",

issn = "0957-4484",

publisher = "IOP Publishing Ltd.",

number = "8",

}

TY - JOUR

T1 - Evidence for enhanced optical properties through plasmon resonance energy transfer in silver silica nanocomposites

AU - Mol, Beena

AU - Joy, Lija K.

AU - Thomas, Hysen

AU - Thomas, Vinoy

AU - Joseph, Cyriac

AU - Narayanan, T. N.

AU - Al-Harthi, Salim

AU - Unnikrishnan, N. V.

AU - Anantharaman, M. R.

PY - 2016/1/25

Y1 - 2016/1/25

N2 - Silver nanoparticles were dispersed in the pores of monolithic mesoporous silica prepared by a modified sol-gel method. Structural and microstructural analyses were carried out by Fourier transform infrared spectroscopy and transmission electron microscopy. X-ray photoelectron spectroscopy was employed to determine the chemical states of silver in the silica matrix. Optical absorption studies show the evolution absorption band around 300 nm for silver (Ag) in a silica matrix and it was found to be redshifted to 422 nm on annealing. Photoluminescence studies indicate the presence of various luminescent emitting centers corresponding to silver ions and silver dimers in the SiO2 matrix. The enhancement of absorption and photoluminescence properties is attributed to plasmon resonance energy transfer from Ag nanoparticles to luminescent species in the matrix.

AB - Silver nanoparticles were dispersed in the pores of monolithic mesoporous silica prepared by a modified sol-gel method. Structural and microstructural analyses were carried out by Fourier transform infrared spectroscopy and transmission electron microscopy. X-ray photoelectron spectroscopy was employed to determine the chemical states of silver in the silica matrix. Optical absorption studies show the evolution absorption band around 300 nm for silver (Ag) in a silica matrix and it was found to be redshifted to 422 nm on annealing. Photoluminescence studies indicate the presence of various luminescent emitting centers corresponding to silver ions and silver dimers in the SiO2 matrix. The enhancement of absorption and photoluminescence properties is attributed to plasmon resonance energy transfer from Ag nanoparticles to luminescent species in the matrix.

KW - photoluminescence

KW - plasmon resonance energy transfer

KW - silver silica nanocomposites

KW - surface plasmon resonance

UR - http://www.scopus.com/inward/record.url?scp=84957042904&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84957042904&partnerID=8YFLogxK

U2 - 10.1088/0957-4484/27/8/085701

DO - 10.1088/0957-4484/27/8/085701

M3 - Article

AN - SCOPUS:84957042904

SN - 0957-4484

VL - 27

JO - Nanotechnology

JF - Nanotechnology

IS - 8

M1 - 085701

ER -

Evidence for enhanced optical properties through plasmon resonance energy transfer in silver silica nanocomposites

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this