On the efficient luminescence of beta-Na(La1-xPrx)F-4

Benjamin Herden; A Meijerink; Freddy T. Rabouw; Markus Haase; Thomas Juestel

doi:10.1016/j.jlumin.2013.09.072

On the efficient luminescence of beta-Na(La1-xPrx)F-4

Benjamin Herden^*, A Meijerink, Freddy T. Rabouw, Markus Haase, Thomas Juestel

^*Corresponding author for this work

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

Abstract

This work describes the synthesis and the optical properties of beta-NaLaF4 and beta-NaLaF4 doped by Pr3+ as a function of the Pr3+ concentration. It is demonstrated that the emission spectrum is a strong function of the Pr3+ concentration and that the external PL efficiency increases with increasing Pr3+ doping level. An energy flow model involving cross-relaxation processes is given to explain this finding. The overall internal quantum efficiency is derived from decay time measurements and found to be 140% for low doping concentrations. Concentration quenching for emission from the S-1(0) level is suppressed for concentrations up to 20% of Pr3+ giving rise to strong absorption and highly efficient line emission around 406 nm. (C) 2013 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	302-306
Number of pages	5
Journal	Journal of Luminescence
Volume	146
DOIs	https://doi.org/10.1016/j.jlumin.2013.09.072
Publication status	Published - Feb 2014

Funding

The authors are grateful to Philips Research Aachen, Germany for generous financial support.

Keywords

Ternary fluorides
Trivalent praseodymium
VUV spectroscopy
Quantum efficiency
Concentration series
Down conversion
PR3+
SPECTROSCOPY
RELAXATION
CRYSTALS

Access to Document

10.1016/j.jlumin.2013.09.072

Embargoed Document

1-s2.0-S0022231313006364-main
Final published version, 1.19 MB
Embargo ends: 1/01/50
Request copy

Cite this

@article{7635666683f54762bedd5010efe2d905,

title = "On the efficient luminescence of beta-Na(La1-xPrx)F-4",

abstract = "This work describes the synthesis and the optical properties of beta-NaLaF4 and beta-NaLaF4 doped by Pr3+ as a function of the Pr3+ concentration. It is demonstrated that the emission spectrum is a strong function of the Pr3+ concentration and that the external PL efficiency increases with increasing Pr3+ doping level. An energy flow model involving cross-relaxation processes is given to explain this finding. The overall internal quantum efficiency is derived from decay time measurements and found to be 140% for low doping concentrations. Concentration quenching for emission from the S-1(0) level is suppressed for concentrations up to 20% of Pr3+ giving rise to strong absorption and highly efficient line emission around 406 nm. (C) 2013 Elsevier B.V. All rights reserved.",

keywords = "Ternary fluorides, Trivalent praseodymium, VUV spectroscopy, Quantum efficiency, Concentration series, Down conversion, PR3+, SPECTROSCOPY, RELAXATION, CRYSTALS",

author = "Benjamin Herden and A Meijerink and Rabouw, {Freddy T.} and Markus Haase and Thomas Juestel",

year = "2014",

month = feb,

doi = "10.1016/j.jlumin.2013.09.072",

language = "English",

volume = "146",

pages = "302--306",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - On the efficient luminescence of beta-Na(La1-xPrx)F-4

AU - Herden, Benjamin

AU - Meijerink, A

AU - Rabouw, Freddy T.

AU - Haase, Markus

AU - Juestel, Thomas

PY - 2014/2

Y1 - 2014/2

N2 - This work describes the synthesis and the optical properties of beta-NaLaF4 and beta-NaLaF4 doped by Pr3+ as a function of the Pr3+ concentration. It is demonstrated that the emission spectrum is a strong function of the Pr3+ concentration and that the external PL efficiency increases with increasing Pr3+ doping level. An energy flow model involving cross-relaxation processes is given to explain this finding. The overall internal quantum efficiency is derived from decay time measurements and found to be 140% for low doping concentrations. Concentration quenching for emission from the S-1(0) level is suppressed for concentrations up to 20% of Pr3+ giving rise to strong absorption and highly efficient line emission around 406 nm. (C) 2013 Elsevier B.V. All rights reserved.

AB - This work describes the synthesis and the optical properties of beta-NaLaF4 and beta-NaLaF4 doped by Pr3+ as a function of the Pr3+ concentration. It is demonstrated that the emission spectrum is a strong function of the Pr3+ concentration and that the external PL efficiency increases with increasing Pr3+ doping level. An energy flow model involving cross-relaxation processes is given to explain this finding. The overall internal quantum efficiency is derived from decay time measurements and found to be 140% for low doping concentrations. Concentration quenching for emission from the S-1(0) level is suppressed for concentrations up to 20% of Pr3+ giving rise to strong absorption and highly efficient line emission around 406 nm. (C) 2013 Elsevier B.V. All rights reserved.

KW - Ternary fluorides

KW - Trivalent praseodymium

KW - VUV spectroscopy

KW - Quantum efficiency

KW - Concentration series

KW - Down conversion

KW - PR3+

KW - SPECTROSCOPY

KW - RELAXATION

KW - CRYSTALS

U2 - 10.1016/j.jlumin.2013.09.072

DO - 10.1016/j.jlumin.2013.09.072

M3 - Article

SN - 0022-2313

VL - 146

SP - 302

EP - 306

JO - Journal of Luminescence

JF - Journal of Luminescence

ER -

On the efficient luminescence of beta-Na(La1-xPrx)F-4

Abstract

Funding

Keywords

Access to Document

Embargoed Document

Fingerprint

Cite this