Influence of triplet excitons on the lifetime of polymer-based organic light emitting diodes

Oili Pekkola; Andrea Gassmann; Fabian Etzold; Frédéric Laquai; Heinz Von Seggern

doi:10.1002/pssa.201330411

Influence of triplet excitons on the lifetime of polymer-based organic light emitting diodes

Oili Pekkola^*, Andrea Gassmann, Fabian Etzold, Frédéric Laquai, Heinz Von Seggern

^*Corresponding author for this work

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

6 Scopus citations

Abstract

In this work, the harmful effect of triplet excitons on the lifetime of poly(p-phenylene vinylene) (PPV)-based organic light emitting diodes is demonstrated. A model system has been designed in which the triplet population in a PPV derivative is increased by blending the polymer with the triplet sensitizer platinum (II) octaethylporphyrine ketone (PtOEPK). The increase in the triplet concentration of the polymer affects both the initial decay and the long-term evolution of luminance and leads to a drastic acceleration of device degradation, reflected in a dramatically shortened lifetime.

Original language	English (US)
Pages (from-to)	2035-2039
Number of pages	5
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	211
Issue number	9
DOIs	https://doi.org/10.1002/pssa.201330411
State	Published - Sep 2014
Externally published	Yes

Keywords

device lifetime
excitons
organic light-emitting diodes
polymers

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Materials Chemistry
Surfaces, Coatings and Films
Electrical and Electronic Engineering
Surfaces and Interfaces

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10.1002/pssa.201330411

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title = "Influence of triplet excitons on the lifetime of polymer-based organic light emitting diodes",

abstract = "In this work, the harmful effect of triplet excitons on the lifetime of poly(p-phenylene vinylene) (PPV)-based organic light emitting diodes is demonstrated. A model system has been designed in which the triplet population in a PPV derivative is increased by blending the polymer with the triplet sensitizer platinum (II) octaethylporphyrine ketone (PtOEPK). The increase in the triplet concentration of the polymer affects both the initial decay and the long-term evolution of luminance and leads to a drastic acceleration of device degradation, reflected in a dramatically shortened lifetime.",

keywords = "device lifetime, excitons, organic light-emitting diodes, polymers",

author = "Oili Pekkola and Andrea Gassmann and Fabian Etzold and Fr{\'e}d{\'e}ric Laquai and {Von Seggern}, Heinz",

note = "Publisher Copyright: {\textcopyright} 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.",

year = "2014",

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doi = "10.1002/pssa.201330411",

language = "English (US)",

volume = "211",

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T1 - Influence of triplet excitons on the lifetime of polymer-based organic light emitting diodes

AU - Pekkola, Oili

AU - Gassmann, Andrea

AU - Etzold, Fabian

AU - Laquai, Frédéric

AU - Von Seggern, Heinz

PY - 2014/9

Y1 - 2014/9

N2 - In this work, the harmful effect of triplet excitons on the lifetime of poly(p-phenylene vinylene) (PPV)-based organic light emitting diodes is demonstrated. A model system has been designed in which the triplet population in a PPV derivative is increased by blending the polymer with the triplet sensitizer platinum (II) octaethylporphyrine ketone (PtOEPK). The increase in the triplet concentration of the polymer affects both the initial decay and the long-term evolution of luminance and leads to a drastic acceleration of device degradation, reflected in a dramatically shortened lifetime.

AB - In this work, the harmful effect of triplet excitons on the lifetime of poly(p-phenylene vinylene) (PPV)-based organic light emitting diodes is demonstrated. A model system has been designed in which the triplet population in a PPV derivative is increased by blending the polymer with the triplet sensitizer platinum (II) octaethylporphyrine ketone (PtOEPK). The increase in the triplet concentration of the polymer affects both the initial decay and the long-term evolution of luminance and leads to a drastic acceleration of device degradation, reflected in a dramatically shortened lifetime.

KW - device lifetime

KW - excitons

KW - organic light-emitting diodes

KW - polymers

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DO - 10.1002/pssa.201330411

M3 - Article

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SN - 1862-6300

VL - 211

SP - 2035

EP - 2039

JO - Physica Status Solidi (A) Applications and Materials Science

JF - Physica Status Solidi (A) Applications and Materials Science

IS - 9

ER -

Influence of triplet excitons on the lifetime of polymer-based organic light emitting diodes

Abstract

Keywords

ASJC Scopus subject areas

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