Judd-ofelt analysis of Eu3+ emission in TiO2 anatase nanoparticles

Mikhail G. Brik; Željka M. Antić; Katarina Vuković; Miroslav D. Dramićanin

doi:10.2320/matertrans.MA201566

Judd-ofelt analysis of Eu³⁺ emission in TiO₂ anatase nanoparticles

Mikhail G. Brik^*
, Željka M. Antić
, Katarina Vuković
, Miroslav D. Dramićanin

^*Corresponding author for this work

Chongqing University of Posts and Telecommunications
University of Tartu
Jan Dlugosz University in Czestochowa
Institute of Physics of the Polish Academy of Sciences
University of Belgrade

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

38 Citations (Scopus)

Abstract

Preparation and spectroscopic studies of the TiO₂ nanopowders doped with Eu³⁺ ions are described. Efficient emission in the red part of the visible spectrum can be obtained due to the ⁵D₀→⁷F₂ emission of europium ions. Quantum efficiency of such emission was estimated to be about 0.83, which indicates a rather weak role of the non-radiative losses. However, the increase of Eu³⁺ concentration up to 10 at% significantly lowers the quantum efficiency because of the energy transfer and re-absorption processes. Higher doping concentrations (larger than 3 at% of Eu³⁺) also decrease the covalency of the Eu³⁺O^2- chemical bonds.

Original language	English
Pages (from-to)	1416-1418
Number of pages	3
Journal	Materials Transactions
Volume	56
Issue number	9
DOIs	https://doi.org/10.2320/matertrans.MA201566
Publication status	Published - 2015
Externally published	Yes

Keywords

Europium
Judd-Ofelt analysis
Nanoparticles
Phosphorescence
TiO

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title = "Judd-ofelt analysis of Eu3+ emission in TiO2 anatase nanoparticles",

abstract = "Preparation and spectroscopic studies of the TiO2 nanopowders doped with Eu3+ ions are described. Efficient emission in the red part of the visible spectrum can be obtained due to the 5D0→7F2 emission of europium ions. Quantum efficiency of such emission was estimated to be about 0.83, which indicates a rather weak role of the non-radiative losses. However, the increase of Eu3+ concentration up to 10 at\% significantly lowers the quantum efficiency because of the energy transfer and re-absorption processes. Higher doping concentrations (larger than 3 at\% of Eu3+) also decrease the covalency of the Eu3+O2- chemical bonds.",

keywords = "Europium, Judd-Ofelt analysis, Nanoparticles, Phosphorescence, TiO",

author = "Brik, \{Mikhail G.\} and Anti{\'c}, \{{\v Z}eljka M.\} and Katarina Vukovi{\'c} and Drami{\'c}anin, \{Miroslav D.\}",

note = "Publisher Copyright: {\textcopyright} 2015 The Japan Institute of Metals and Materials.",

year = "2015",

doi = "10.2320/matertrans.MA201566",

language = "English",

volume = "56",

pages = "1416--1418",

journal = "Materials Transactions",

issn = "1345-9678",

publisher = "Japan Institute of Metals (JIM)",

number = "9",

}

TY - JOUR

T1 - Judd-ofelt analysis of Eu3+ emission in TiO2 anatase nanoparticles

AU - Brik, Mikhail G.

AU - Antić, Željka M.

AU - Vuković, Katarina

AU - Dramićanin, Miroslav D.

PY - 2015

Y1 - 2015

N2 - Preparation and spectroscopic studies of the TiO2 nanopowders doped with Eu3+ ions are described. Efficient emission in the red part of the visible spectrum can be obtained due to the 5D0→7F2 emission of europium ions. Quantum efficiency of such emission was estimated to be about 0.83, which indicates a rather weak role of the non-radiative losses. However, the increase of Eu3+ concentration up to 10 at% significantly lowers the quantum efficiency because of the energy transfer and re-absorption processes. Higher doping concentrations (larger than 3 at% of Eu3+) also decrease the covalency of the Eu3+O2- chemical bonds.

AB - Preparation and spectroscopic studies of the TiO2 nanopowders doped with Eu3+ ions are described. Efficient emission in the red part of the visible spectrum can be obtained due to the 5D0→7F2 emission of europium ions. Quantum efficiency of such emission was estimated to be about 0.83, which indicates a rather weak role of the non-radiative losses. However, the increase of Eu3+ concentration up to 10 at% significantly lowers the quantum efficiency because of the energy transfer and re-absorption processes. Higher doping concentrations (larger than 3 at% of Eu3+) also decrease the covalency of the Eu3+O2- chemical bonds.

KW - Europium

KW - Judd-Ofelt analysis

KW - Nanoparticles

KW - Phosphorescence

KW - TiO

UR - https://www.scopus.com/pages/publications/84941058522

U2 - 10.2320/matertrans.MA201566

DO - 10.2320/matertrans.MA201566

M3 - Article

AN - SCOPUS:84941058522

SN - 1345-9678

VL - 56

SP - 1416

EP - 1418

JO - Materials Transactions

JF - Materials Transactions

IS - 9

ER -

Judd-ofelt analysis of Eu³⁺ emission in TiO₂ anatase nanoparticles

Abstract

Keywords

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