Composition dependence of photoluminescence properties of poly(9,9-di-n-hexylfluorenyl-2,7-diyl) with perovskite-structured SrTiO3 nanocomposites

U. K N Din, Muhamad Mat Salleh, T. H T Aziz, Ali Umar Akrajas

Research output: Contribution to journalArticle

Abstract

Nanocomposite thin films of poly(9,9-di-n-hexylfluorenyl-2,7-diyl) (PHF) with 10-50 wt% perovskite-structured SrTiO3 nanoparticles (designated as PHF:SrTiO3) were prepared by spin coating. The photoluminescence (PL) properties of the nanocomposites thin films were studied. The incorporation of SrTiO3 nanoparticles into the nanocomposite thin films enhanced the original PL intensities of the host PHF thin films. The intensities of the PL peak for the nanocomposite thin films were dependent on the amount of SrTiO3 nanoparticles in the films and the homogeneity of the nanoparticle distribution. The distribution of the SrTiO3 nanoparticles contributed to the overlapping molecular orbital sites in PHF:SrTiO3, which promoted the excited electrons from the conduction band of SrTiO3 transferred to the excited energy level of the PHF host material. In this case, the perovskite-structured SrTiO3 nanoparticles act as sensitizers.

Original languageEnglish
Pages (from-to)153-156
Number of pages4
JournalSuperlattices and Microstructures
Volume93
DOIs
Publication statusPublished - 1 May 2016

Fingerprint

Perovskite
Nanocomposites
Photoluminescence
nanocomposites
Nanocomposite films
Nanoparticles
photoluminescence
nanoparticles
Thin films
Chemical analysis
thin films
Spin coating
Molecular orbitals
Conduction bands
Electron energy levels
homogeneity
coating
perovskite
strontium titanium oxide
molecular orbitals

Keywords

  • Nanocomposites
  • Optical materials and properties
  • Perovskite-structured SrTiO
  • Photoluminescence
  • Poly(9,9-di-n-hexylfluorenyl-2,7-diyl)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Materials Science(all)

Cite this

@article{ca770b3a16624312a54af2053cb51b6d,
title = "Composition dependence of photoluminescence properties of poly(9,9-di-n-hexylfluorenyl-2,7-diyl) with perovskite-structured SrTiO3 nanocomposites",
abstract = "Nanocomposite thin films of poly(9,9-di-n-hexylfluorenyl-2,7-diyl) (PHF) with 10-50 wt{\%} perovskite-structured SrTiO3 nanoparticles (designated as PHF:SrTiO3) were prepared by spin coating. The photoluminescence (PL) properties of the nanocomposites thin films were studied. The incorporation of SrTiO3 nanoparticles into the nanocomposite thin films enhanced the original PL intensities of the host PHF thin films. The intensities of the PL peak for the nanocomposite thin films were dependent on the amount of SrTiO3 nanoparticles in the films and the homogeneity of the nanoparticle distribution. The distribution of the SrTiO3 nanoparticles contributed to the overlapping molecular orbital sites in PHF:SrTiO3, which promoted the excited electrons from the conduction band of SrTiO3 transferred to the excited energy level of the PHF host material. In this case, the perovskite-structured SrTiO3 nanoparticles act as sensitizers.",
keywords = "Nanocomposites, Optical materials and properties, Perovskite-structured SrTiO, Photoluminescence, Poly(9,9-di-n-hexylfluorenyl-2,7-diyl)",
author = "Din, {U. K N} and {Mat Salleh}, Muhamad and Aziz, {T. H T} and Akrajas, {Ali Umar}",
year = "2016",
month = "5",
day = "1",
doi = "10.1016/j.spmi.2016.03.011",
language = "English",
volume = "93",
pages = "153--156",
journal = "Superlattices and Microstructures",
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publisher = "Academic Press Inc.",

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T1 - Composition dependence of photoluminescence properties of poly(9,9-di-n-hexylfluorenyl-2,7-diyl) with perovskite-structured SrTiO3 nanocomposites

AU - Din, U. K N

AU - Mat Salleh, Muhamad

AU - Aziz, T. H T

AU - Akrajas, Ali Umar

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Nanocomposite thin films of poly(9,9-di-n-hexylfluorenyl-2,7-diyl) (PHF) with 10-50 wt% perovskite-structured SrTiO3 nanoparticles (designated as PHF:SrTiO3) were prepared by spin coating. The photoluminescence (PL) properties of the nanocomposites thin films were studied. The incorporation of SrTiO3 nanoparticles into the nanocomposite thin films enhanced the original PL intensities of the host PHF thin films. The intensities of the PL peak for the nanocomposite thin films were dependent on the amount of SrTiO3 nanoparticles in the films and the homogeneity of the nanoparticle distribution. The distribution of the SrTiO3 nanoparticles contributed to the overlapping molecular orbital sites in PHF:SrTiO3, which promoted the excited electrons from the conduction band of SrTiO3 transferred to the excited energy level of the PHF host material. In this case, the perovskite-structured SrTiO3 nanoparticles act as sensitizers.

AB - Nanocomposite thin films of poly(9,9-di-n-hexylfluorenyl-2,7-diyl) (PHF) with 10-50 wt% perovskite-structured SrTiO3 nanoparticles (designated as PHF:SrTiO3) were prepared by spin coating. The photoluminescence (PL) properties of the nanocomposites thin films were studied. The incorporation of SrTiO3 nanoparticles into the nanocomposite thin films enhanced the original PL intensities of the host PHF thin films. The intensities of the PL peak for the nanocomposite thin films were dependent on the amount of SrTiO3 nanoparticles in the films and the homogeneity of the nanoparticle distribution. The distribution of the SrTiO3 nanoparticles contributed to the overlapping molecular orbital sites in PHF:SrTiO3, which promoted the excited electrons from the conduction band of SrTiO3 transferred to the excited energy level of the PHF host material. In this case, the perovskite-structured SrTiO3 nanoparticles act as sensitizers.

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KW - Optical materials and properties

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KW - Poly(9,9-di-n-hexylfluorenyl-2,7-diyl)

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