Published May 23, 2016 | Version v1
Journal article Metadata-only

Structural and light up-conversion luminescence properties of Er3+-Yb3+-W6+ substituted Bi4Ti3O12

Creators

  • 1. Department of Physics & Astrophysics, University of Delhi, Delhi-110007 (India)
  • 2. Laser & Spectroscopy Laboratory, Department of Applied Physics, Indian School of Mines, Dhanbad 826 004, Jharkhand (India)

Description

The structural and light up-conversion (UC) luminescence properties of W6+ substituted Bi3.79Er0.03Yb0.18Ti3-xWxO12 (0 ≤ x ≤ 0.10) ceramics prepared by solid state reaction method have been investigated. X-ray diffraction (XRD) confirms the formation of single phase material with orthorhombic structure. A decrease in the lattice parameters and unit cell volume is observed with increasing W content. Strong UC luminescence at 527, 548 and 662 nm is seen under an excitation of 980 nm for an optimum W content (x = 0.06) and is attributed to the transitions 2H11/2 →4I15/2, 4S3/2 →4I15/2 and 4F9/2 →4I15/2 respectively. The improved UC luminescence is ascribed to the reduced defects such as oxygen vacancies and change in the crystal field around Er3+ ions due to B-site (Ti4+) substitution with W6+ ions. Enhanced UC emission is observed for an optimum content of w6+ in the prepared composition Bi3.79Er0.03Yb0.18Ti3-xWxO12 for x = 0.06.

Additional details

Identifiers

DOI
10.1063/1.4948208;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
1731
Journal Issue
1
Journal Page Range
vp.
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
DAE solid state physics symposium 2015
Dates
21-25 Dec 2015
Place
Uttar Pradesh (India)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48054920
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BISMUTH COMPOUNDS; CERAMICS; CONVERSION; CRYSTAL FIELD; CRYSTALS; DEFECTS; DEUTERIUM; ERBIUM ADDITIONS; EXCITATION; LATTICE PARAMETERS; LUMINESCENCE; ORTHORHOMBIC LATTICES; OXYGEN; SOLIDS; TITANATES; TUNGSTEN ADDITIONS; VACANCIES; VISIBLE RADIATION; X-RAY DIFFRACTION; YTTERBIUM ADDITIONS
Descriptors DEC
ALLOYS; COHERENT SCATTERING; CRYSTAL DEFECTS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; ELECTROMAGNETIC RADIATION; ELEMENTS; EMISSION; ENERGY-LEVEL TRANSITIONS; ERBIUM ALLOYS; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; NONMETALS; NUCLEI; ODD-ODD NUCLEI; OXYGEN COMPOUNDS; PHOTON EMISSION; POINT DEFECTS; RADIATIONS; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; SCATTERING; STABLE ISOTOPES; THREE-DIMENSIONAL LATTICES; TITANIUM COMPOUNDS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; TUNGSTEN ALLOYS

Optional Information

Notes
(c) 2016 Author(s)