Visible photoluminescence of ZnO nanoparticles dispersed in highly transparent MgF2 thin-films via sol-gel process

Shinobu Fujihara, Hiroki Naito, Toshio Kimura

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

ZnO/MgF2 nanocomposite thin films, where ZnO nanoparticles were dispersed in an MgF2 matrix, were prepared by a sol-gel method using metal acetates, isopropanol, trifluoroacetic acid, monoethanolamine and water as starting materials. The particle size of ZnO was approximately 6.2 nm, showing quantum size effects in the absorption edge measurement. Green photoluminescent (PL) emission from the films was observed at room temperature. The emission intensity was found to be greatly dependent on heat-treatment temperature and time. By optimizing the heating conditions, the film with high transparency and high PL intensity was obtained. Influence of the heating conditions on the formation of the ZnO nanoparticles and the green emission was discussed.

Original languageEnglish
Pages (from-to)227-232
Number of pages6
JournalThin Solid Films
Volume389
Issue number1-2
DOIs
Publication statusPublished - 2001 Jun 15

Fingerprint

sol-gel processes
Sol-gel process
Photoluminescence
Nanoparticles
Trifluoroacetic acid
photoluminescence
Heating
Trifluoroacetic Acid
Thin films
nanoparticles
Ethanolamine
Nanocomposite films
2-Propanol
thin films
monoethanolamine (MEA)
Transparency
Acetates
heating
Metals
Particle size

Keywords

  • Coatings
  • Fluorides
  • Luminescence
  • Nanostructures
  • Zinc oxide

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Visible photoluminescence of ZnO nanoparticles dispersed in highly transparent MgF2 thin-films via sol-gel process. / Fujihara, Shinobu; Naito, Hiroki; Kimura, Toshio.

In: Thin Solid Films, Vol. 389, No. 1-2, 15.06.2001, p. 227-232.

Research output: Contribution to journalArticle

@article{c137f4b6d43948209b9edb7964221258,
title = "Visible photoluminescence of ZnO nanoparticles dispersed in highly transparent MgF2 thin-films via sol-gel process",
abstract = "ZnO/MgF2 nanocomposite thin films, where ZnO nanoparticles were dispersed in an MgF2 matrix, were prepared by a sol-gel method using metal acetates, isopropanol, trifluoroacetic acid, monoethanolamine and water as starting materials. The particle size of ZnO was approximately 6.2 nm, showing quantum size effects in the absorption edge measurement. Green photoluminescent (PL) emission from the films was observed at room temperature. The emission intensity was found to be greatly dependent on heat-treatment temperature and time. By optimizing the heating conditions, the film with high transparency and high PL intensity was obtained. Influence of the heating conditions on the formation of the ZnO nanoparticles and the green emission was discussed.",
keywords = "Coatings, Fluorides, Luminescence, Nanostructures, Zinc oxide",
author = "Shinobu Fujihara and Hiroki Naito and Toshio Kimura",
year = "2001",
month = "6",
day = "15",
doi = "10.1016/S0040-6090(01)00893-8",
language = "English",
volume = "389",
pages = "227--232",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Visible photoluminescence of ZnO nanoparticles dispersed in highly transparent MgF2 thin-films via sol-gel process

AU - Fujihara, Shinobu

AU - Naito, Hiroki

AU - Kimura, Toshio

PY - 2001/6/15

Y1 - 2001/6/15

N2 - ZnO/MgF2 nanocomposite thin films, where ZnO nanoparticles were dispersed in an MgF2 matrix, were prepared by a sol-gel method using metal acetates, isopropanol, trifluoroacetic acid, monoethanolamine and water as starting materials. The particle size of ZnO was approximately 6.2 nm, showing quantum size effects in the absorption edge measurement. Green photoluminescent (PL) emission from the films was observed at room temperature. The emission intensity was found to be greatly dependent on heat-treatment temperature and time. By optimizing the heating conditions, the film with high transparency and high PL intensity was obtained. Influence of the heating conditions on the formation of the ZnO nanoparticles and the green emission was discussed.

AB - ZnO/MgF2 nanocomposite thin films, where ZnO nanoparticles were dispersed in an MgF2 matrix, were prepared by a sol-gel method using metal acetates, isopropanol, trifluoroacetic acid, monoethanolamine and water as starting materials. The particle size of ZnO was approximately 6.2 nm, showing quantum size effects in the absorption edge measurement. Green photoluminescent (PL) emission from the films was observed at room temperature. The emission intensity was found to be greatly dependent on heat-treatment temperature and time. By optimizing the heating conditions, the film with high transparency and high PL intensity was obtained. Influence of the heating conditions on the formation of the ZnO nanoparticles and the green emission was discussed.

KW - Coatings

KW - Fluorides

KW - Luminescence

KW - Nanostructures

KW - Zinc oxide

UR - http://www.scopus.com/inward/record.url?scp=0035876772&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035876772&partnerID=8YFLogxK

U2 - 10.1016/S0040-6090(01)00893-8

DO - 10.1016/S0040-6090(01)00893-8

M3 - Article

AN - SCOPUS:0035876772

VL - 389

SP - 227

EP - 232

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

IS - 1-2

ER -