Photoluminescence of oxygen vacancies in nanostructured Al2O3

Anton I. Kostyukov; Aleksey V. Zhuzhgov; Vasily V. Kaichev; Alexander A. Rastorguev; Vladimir N. Snytnikov; Valeriy N. Snytnikov

doi:10.1016/j.optmat.2017.11.040

Photoluminescence of oxygen vacancies in nanostructured Al₂O₃

Anton I. Kostyukov, Aleksey V. Zhuzhgov, Vasily V. Kaichev, Alexander A. Rastorguev, Vladimir N. Snytnikov, Valeriy N. Snytnikov

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

16 Citations (Scopus)

Abstract

Oxygen vacancies represented by F and F₂ centers were detected in faceted Al₂O₃ nanoparticles with the size less than 10 nm by a photoluminescence method. Al₂O₃ nanoparticles with such intrinsic defects were synthesized by evaporation of α-Al₂O₃ in flowing helium using a continuous wave CO₂ laser. The XRD analysis showed that the crystal structure of Al₂O₃ nanoparticles is represented mostly by the low-temperature γ- and/or η-Al₂O₃ phases. The luminescence maxima of F and F₂ centers in the Al₂O₃ nanoparticles were found to be 3.07 and 2.47 eV. These values are close to the luminescence maxima of F and F₂ centers in bulk α-Al₂O₃.

Original language	English
Pages (from-to)	757-763
Number of pages	7
Journal	Optical Materials
Volume	75
DOIs	https://doi.org/10.1016/j.optmat.2017.11.040
Publication status	Published - 1 Jan 2018

Keywords

AlO nanoparticles
Laser evaporation
Oxygen vacancies
Photoluminescence
DEFECTS
ALUMINA SINGLE-CRYSTALS
OXIDE
OPTICAL-PROPERTIES
IONS
ALPHA-AL2O3
ANODIC ALUMINA
NANOPARTICLES
LUMINESCENCE
Al2O3 nanoparticles
ELECTRONIC EXCITATIONS

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10.1016/j.optmat.2017.11.040

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title = "Photoluminescence of oxygen vacancies in nanostructured Al2O3",

abstract = "Oxygen vacancies represented by F and F2 centers were detected in faceted Al2O3 nanoparticles with the size less than 10 nm by a photoluminescence method. Al2O3 nanoparticles with such intrinsic defects were synthesized by evaporation of α-Al2O3 in flowing helium using a continuous wave CO2 laser. The XRD analysis showed that the crystal structure of Al2O3 nanoparticles is represented mostly by the low-temperature γ- and/or η-Al2O3 phases. The luminescence maxima of F and F2 centers in the Al2O3 nanoparticles were found to be 3.07 and 2.47 eV. These values are close to the luminescence maxima of F and F2 centers in bulk α-Al2O3.",

keywords = "AlO nanoparticles, Laser evaporation, Oxygen vacancies, Photoluminescence, DEFECTS, ALUMINA SINGLE-CRYSTALS, OXIDE, OPTICAL-PROPERTIES, IONS, ALPHA-AL2O3, ANODIC ALUMINA, NANOPARTICLES, LUMINESCENCE, Al2O3 nanoparticles, ELECTRONIC EXCITATIONS",

author = "Kostyukov, {Anton I.} and Zhuzhgov, {Aleksey V.} and Kaichev, {Vasily V.} and Rastorguev, {Alexander A.} and Snytnikov, {Vladimir N.} and Snytnikov, {Valeriy N.}",

year = "2018",

month = jan,

day = "1",

doi = "10.1016/j.optmat.2017.11.040",

language = "English",

volume = "75",

pages = "757--763",

journal = "Optical Materials",

issn = "0925-3467",

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TY - JOUR

T1 - Photoluminescence of oxygen vacancies in nanostructured Al2O3

AU - Kostyukov, Anton I.

AU - Zhuzhgov, Aleksey V.

AU - Kaichev, Vasily V.

AU - Rastorguev, Alexander A.

AU - Snytnikov, Vladimir N.

AU - Snytnikov, Valeriy N.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Oxygen vacancies represented by F and F2 centers were detected in faceted Al2O3 nanoparticles with the size less than 10 nm by a photoluminescence method. Al2O3 nanoparticles with such intrinsic defects were synthesized by evaporation of α-Al2O3 in flowing helium using a continuous wave CO2 laser. The XRD analysis showed that the crystal structure of Al2O3 nanoparticles is represented mostly by the low-temperature γ- and/or η-Al2O3 phases. The luminescence maxima of F and F2 centers in the Al2O3 nanoparticles were found to be 3.07 and 2.47 eV. These values are close to the luminescence maxima of F and F2 centers in bulk α-Al2O3.

AB - Oxygen vacancies represented by F and F2 centers were detected in faceted Al2O3 nanoparticles with the size less than 10 nm by a photoluminescence method. Al2O3 nanoparticles with such intrinsic defects were synthesized by evaporation of α-Al2O3 in flowing helium using a continuous wave CO2 laser. The XRD analysis showed that the crystal structure of Al2O3 nanoparticles is represented mostly by the low-temperature γ- and/or η-Al2O3 phases. The luminescence maxima of F and F2 centers in the Al2O3 nanoparticles were found to be 3.07 and 2.47 eV. These values are close to the luminescence maxima of F and F2 centers in bulk α-Al2O3.

KW - AlO nanoparticles

KW - Laser evaporation

KW - Oxygen vacancies

KW - Photoluminescence

KW - DEFECTS

KW - ALUMINA SINGLE-CRYSTALS

KW - OXIDE

KW - OPTICAL-PROPERTIES

KW - IONS

KW - ALPHA-AL2O3

KW - ANODIC ALUMINA

KW - NANOPARTICLES

KW - LUMINESCENCE

KW - Al2O3 nanoparticles

KW - ELECTRONIC EXCITATIONS

UR - http://www.scopus.com/inward/record.url?scp=85035777655&partnerID=8YFLogxK

U2 - 10.1016/j.optmat.2017.11.040

DO - 10.1016/j.optmat.2017.11.040

M3 - Article

AN - SCOPUS:85035777655

VL - 75

SP - 757

EP - 763

JO - Optical Materials

JF - Optical Materials

SN - 0925-3467

ER -

Photoluminescence of oxygen vacancies in nanostructured Al₂O₃

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Keywords

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