Time-dependence of erbium(III) tris(8-hydroxyquinolate) near- infrared photoluminescence: implications for organic light- emitting diode efficiency

SW Magennis; AJ Ferguson; T Bryden; TS Jones; A Beeby; Ifor David William Samuel

Time-dependence of erbium(III) tris(8-hydroxyquinolate) near- infrared photoluminescence: implications for organic light- emitting diode efficiency

SW Magennis, AJ Ferguson, T Bryden, TS Jones, A Beeby, Ifor David William Samuel

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

Abstract

We report the first time-resolved photoluminescence studies of erbium tris(8-hydroxyquinolate), [ErQ(3)], as a powder, a thin film blend with polycarbonate. an evaporated film and in DMSO-d(6) solution. The I-4(13/2) --> I-4(15/2) transition at 1.5 mum displays biexponential kinetics with photoluminescence lifetimes in the region of 0.2 mus for the powder, 0.4 mus for the thin film blend, 0.9 mus for the evaporated film, and 2 mus in solution. These observed lifetimes are much shorter than the natural radiative lifetimes of this Er3+ transition, implying photoluminescence quantum yields that range from 0.002 to 0.03%. This has significant consequences for the device efficiencies achievable by near IR-emitting organic light-emitting diodes (OLEDs) containing [ErQ(3)] as the emissive layer. (C) 2002 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	463-469
Number of pages	7
Journal	Synthetic Metals
Volume	138
Issue number	3
Publication status	Published - 4 Jul 2003

Keywords

erbium
photoluminescence
8-hydroxyquinolate
OLED
1.5 MU-M
LANTHANIDE COMPLEXES
OPTICAL-PROPERTIES
ER3+ COMPLEXES
THIN-FILMS
LUMINESCENCE
ELECTROLUMINESCENCE
NEODYMIUM(III)
DIANHYDRIDE
YTTERBIUM

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@article{f11e61b7d6744f2a8e9d5a8b0543fea4,

title = "Time-dependence of erbium(III) tris(8-hydroxyquinolate) near- infrared photoluminescence: implications for organic light- emitting diode efficiency",

abstract = "We report the first time-resolved photoluminescence studies of erbium tris(8-hydroxyquinolate), [ErQ(3)], as a powder, a thin film blend with polycarbonate. an evaporated film and in DMSO-d(6) solution. The I-4(13/2) --> I-4(15/2) transition at 1.5 mum displays biexponential kinetics with photoluminescence lifetimes in the region of 0.2 mus for the powder, 0.4 mus for the thin film blend, 0.9 mus for the evaporated film, and 2 mus in solution. These observed lifetimes are much shorter than the natural radiative lifetimes of this Er3+ transition, implying photoluminescence quantum yields that range from 0.002 to 0.03%. This has significant consequences for the device efficiencies achievable by near IR-emitting organic light-emitting diodes (OLEDs) containing [ErQ(3)] as the emissive layer. (C) 2002 Elsevier Science B.V. All rights reserved.",

keywords = "erbium, photoluminescence, 8-hydroxyquinolate, OLED, 1.5 MU-M, LANTHANIDE COMPLEXES, OPTICAL-PROPERTIES, ER3+ COMPLEXES, THIN-FILMS, LUMINESCENCE, ELECTROLUMINESCENCE, NEODYMIUM(III), DIANHYDRIDE, YTTERBIUM",

author = "SW Magennis and AJ Ferguson and T Bryden and TS Jones and A Beeby and Samuel, {Ifor David William}",

year = "2003",

month = jul,

day = "4",

language = "English",

volume = "138",

pages = "463--469",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "ELSEVIER SCIENCE SA",

number = "3",

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TY - JOUR

T1 - Time-dependence of erbium(III) tris(8-hydroxyquinolate) near- infrared photoluminescence: implications for organic light- emitting diode efficiency

AU - Magennis, SW

AU - Ferguson, AJ

AU - Bryden, T

AU - Jones, TS

AU - Beeby, A

AU - Samuel, Ifor David William

PY - 2003/7/4

Y1 - 2003/7/4

N2 - We report the first time-resolved photoluminescence studies of erbium tris(8-hydroxyquinolate), [ErQ(3)], as a powder, a thin film blend with polycarbonate. an evaporated film and in DMSO-d(6) solution. The I-4(13/2) --> I-4(15/2) transition at 1.5 mum displays biexponential kinetics with photoluminescence lifetimes in the region of 0.2 mus for the powder, 0.4 mus for the thin film blend, 0.9 mus for the evaporated film, and 2 mus in solution. These observed lifetimes are much shorter than the natural radiative lifetimes of this Er3+ transition, implying photoluminescence quantum yields that range from 0.002 to 0.03%. This has significant consequences for the device efficiencies achievable by near IR-emitting organic light-emitting diodes (OLEDs) containing [ErQ(3)] as the emissive layer. (C) 2002 Elsevier Science B.V. All rights reserved.

AB - We report the first time-resolved photoluminescence studies of erbium tris(8-hydroxyquinolate), [ErQ(3)], as a powder, a thin film blend with polycarbonate. an evaporated film and in DMSO-d(6) solution. The I-4(13/2) --> I-4(15/2) transition at 1.5 mum displays biexponential kinetics with photoluminescence lifetimes in the region of 0.2 mus for the powder, 0.4 mus for the thin film blend, 0.9 mus for the evaporated film, and 2 mus in solution. These observed lifetimes are much shorter than the natural radiative lifetimes of this Er3+ transition, implying photoluminescence quantum yields that range from 0.002 to 0.03%. This has significant consequences for the device efficiencies achievable by near IR-emitting organic light-emitting diodes (OLEDs) containing [ErQ(3)] as the emissive layer. (C) 2002 Elsevier Science B.V. All rights reserved.

KW - erbium

KW - photoluminescence

KW - 8-hydroxyquinolate

KW - OLED

KW - 1.5 MU-M

KW - LANTHANIDE COMPLEXES

KW - OPTICAL-PROPERTIES

KW - ER3+ COMPLEXES

KW - THIN-FILMS

KW - LUMINESCENCE

KW - ELECTROLUMINESCENCE

KW - NEODYMIUM(III)

KW - DIANHYDRIDE

KW - YTTERBIUM

UR - http://www.scopus.com/inward/record.url?scp=0038043232&partnerID=8YFLogxK

M3 - Article

SN - 0379-6779

VL - 138

SP - 463

EP - 469

JO - Synthetic Metals

JF - Synthetic Metals

IS - 3

ER -

Time-dependence of erbium(III) tris(8-hydroxyquinolate) near- infrared photoluminescence: implications for organic light- emitting diode efficiency

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Keywords

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