Efficient white polymer light-emitting diodes (WPLEDs) based on double emitting layers of a PVK:Eu(iii)-complex and Alq3

Yani He; Lin Liu; Guorui Fu; Wentao Li; Xingqiang Lü; Hongshan He; Wai Yeung Wong

doi:10.1039/c8tc06610h

Efficient white polymer light-emitting diodes (WPLEDs) based on double emitting layers of a PVK:Eu(iii)-complex and Alq₃

Yani He, Lin Liu, Guorui Fu, Wentao Li, Xingqiang Lü, Hongshan He, Wai Yeung Wong (Corresponding Author)

Research output: Journal article publication › Journal article › Academic research › peer-review

12 Citations (Scopus)

Abstract

Colour-tunable polymer light-emitting diodes (PLEDs) were realized by tuning the concentration of an Eu³⁺-complex in the emitting-layer (EML) and the thickness of the hole-blocking BCP layer (BCP = 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline) in a double-emitting-layer (dEML) configuration. The dEML used PVK:complex 2 (PVK = poly(N-vinylcarbazole); H₂Salen = N,N′-bis(salicylidene)cyclohexane-1,2-diamine and HDBM = dibenzoylmethane for [Zn(Salen)(μ-OAc)Eu(DBM)₂] (2)) as EML1 and Alq₃ as EML2. The efficiencies (0.32-0.39 cd A^-1, 0.54-0.56% and 0.99-1.10 lm W^-1) were obtained from organo-Eu³⁺ incorporated WPLEDs with a complex-2-doping content of 20 or 30 wt% and 20 nm BCP thickness. The WPLEDs exhibited low turn-on voltage (6.0-7.5 V) and low efficiency-roll-off, which are advantageous to organo-Eu³⁺ doped WOLEDs.

Original language	English
Pages (from-to)	4800-4807
Number of pages	8
Journal	Journal of Materials Chemistry C
Volume	7
Issue number	16
DOIs	https://doi.org/10.1039/c8tc06610h
Publication status	Published - 1 Jan 2019

ASJC Scopus subject areas

General Chemistry
Materials Chemistry

More information

10.1039/c8tc06610h

Cite this

@article{fe06f9a2b11b49d4aad487221af0198a,

title = "Efficient white polymer light-emitting diodes (WPLEDs) based on double emitting layers of a PVK:Eu(iii)-complex and Alq3",

abstract = "Colour-tunable polymer light-emitting diodes (PLEDs) were realized by tuning the concentration of an Eu3+-complex in the emitting-layer (EML) and the thickness of the hole-blocking BCP layer (BCP = 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline) in a double-emitting-layer (dEML) configuration. The dEML used PVK:complex 2 (PVK = poly(N-vinylcarbazole); H2Salen = N,N′-bis(salicylidene)cyclohexane-1,2-diamine and HDBM = dibenzoylmethane for [Zn(Salen)(μ-OAc)Eu(DBM)2] (2)) as EML1 and Alq3 as EML2. The efficiencies (0.32-0.39 cd A-1, 0.54-0.56% and 0.99-1.10 lm W-1) were obtained from organo-Eu3+ incorporated WPLEDs with a complex-2-doping content of 20 or 30 wt% and 20 nm BCP thickness. The WPLEDs exhibited low turn-on voltage (6.0-7.5 V) and low efficiency-roll-off, which are advantageous to organo-Eu3+ doped WOLEDs.",

author = "Yani He and Lin Liu and Guorui Fu and Wentao Li and Xingqiang L{\"u} and Hongshan He and Wong, {Wai Yeung}",

year = "2019",

month = jan,

day = "1",

doi = "10.1039/c8tc06610h",

language = "English",

volume = "7",

pages = "4800--4807",

journal = "Journal of Materials Chemistry C",

issn = "2050-7534",

publisher = "Royal Society of Chemistry",

number = "16",

}

TY - JOUR

T1 - Efficient white polymer light-emitting diodes (WPLEDs) based on double emitting layers of a PVK:Eu(iii)-complex and Alq3

AU - He, Yani

AU - Liu, Lin

AU - Fu, Guorui

AU - Li, Wentao

AU - Lü, Xingqiang

AU - He, Hongshan

AU - Wong, Wai Yeung

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Colour-tunable polymer light-emitting diodes (PLEDs) were realized by tuning the concentration of an Eu3+-complex in the emitting-layer (EML) and the thickness of the hole-blocking BCP layer (BCP = 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline) in a double-emitting-layer (dEML) configuration. The dEML used PVK:complex 2 (PVK = poly(N-vinylcarbazole); H2Salen = N,N′-bis(salicylidene)cyclohexane-1,2-diamine and HDBM = dibenzoylmethane for [Zn(Salen)(μ-OAc)Eu(DBM)2] (2)) as EML1 and Alq3 as EML2. The efficiencies (0.32-0.39 cd A-1, 0.54-0.56% and 0.99-1.10 lm W-1) were obtained from organo-Eu3+ incorporated WPLEDs with a complex-2-doping content of 20 or 30 wt% and 20 nm BCP thickness. The WPLEDs exhibited low turn-on voltage (6.0-7.5 V) and low efficiency-roll-off, which are advantageous to organo-Eu3+ doped WOLEDs.

AB - Colour-tunable polymer light-emitting diodes (PLEDs) were realized by tuning the concentration of an Eu3+-complex in the emitting-layer (EML) and the thickness of the hole-blocking BCP layer (BCP = 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline) in a double-emitting-layer (dEML) configuration. The dEML used PVK:complex 2 (PVK = poly(N-vinylcarbazole); H2Salen = N,N′-bis(salicylidene)cyclohexane-1,2-diamine and HDBM = dibenzoylmethane for [Zn(Salen)(μ-OAc)Eu(DBM)2] (2)) as EML1 and Alq3 as EML2. The efficiencies (0.32-0.39 cd A-1, 0.54-0.56% and 0.99-1.10 lm W-1) were obtained from organo-Eu3+ incorporated WPLEDs with a complex-2-doping content of 20 or 30 wt% and 20 nm BCP thickness. The WPLEDs exhibited low turn-on voltage (6.0-7.5 V) and low efficiency-roll-off, which are advantageous to organo-Eu3+ doped WOLEDs.

UR - http://www.scopus.com/inward/record.url?scp=85065206992&partnerID=8YFLogxK

U2 - 10.1039/c8tc06610h

DO - 10.1039/c8tc06610h

M3 - Journal article

AN - SCOPUS:85065206992

SN - 2050-7534

VL - 7

SP - 4800

EP - 4807

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 16

ER -

Efficient white polymer light-emitting diodes (WPLEDs) based on double emitting layers of a PVK:Eu(iii)-complex and Alq₃

Abstract

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this