Measuring the profile of the emission zone in polymeric organic light-emitting diodes

Malte Christian Gather; Michael Flämmich; Norbert Danz; Dirk Michaelis; Klaus Meerholz

doi:10.1063/1.3159836

Measuring the profile of the emission zone in polymeric organic light-emitting diodes

Malte Christian Gather, Michael Flämmich, Norbert Danz, Dirk Michaelis, Klaus Meerholz

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Abstract

The profile of the emission zone (PEZ) in the emissive layer (EML) of polymericorganic light-emitting diodes(OLEDs) is determined by fitting the measured electroluminescencespectrum of the device with a series of simulated spectra that correspond to different emitter locations. The studied OLEDs are based on two different blue-emitting conjugated polymers. In one case, the PEZ is confined to a 10 nm thin sheet at the anode indicating electron dominated current in the EML. In OLEDs based on the other emitter, the PEZ spreads over the entire EML.

Original language	English
Pages (from-to)	263301
Number of pages	3
Journal	Applied Physics Letters
Volume	94
Issue number	26
DOIs	https://doi.org/10.1063/1.3159836
Publication status	Published - 30 Jun 2009

Keywords

Organic light emitting diodes
POLYMERS
Emission spectra
ANODES
CATHODES

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title = "Measuring the profile of the emission zone in polymeric organic light-emitting diodes",

abstract = "The profile of the emission zone (PEZ) in the emissive layer (EML) of polymericorganic light-emitting diodes(OLEDs) is determined by fitting the measured electroluminescencespectrum of the device with a series of simulated spectra that correspond to different emitter locations. The studied OLEDs are based on two different blue-emitting conjugated polymers. In one case, the PEZ is confined to a 10 nm thin sheet at the anode indicating electron dominated current in the EML. In OLEDs based on the other emitter, the PEZ spreads over the entire EML.",

keywords = "Organic light emitting diodes, POLYMERS, Emission spectra, ANODES, CATHODES",

author = "Gather, \{Malte Christian\} and Michael Fl{\"a}mmich and Norbert Danz and Dirk Michaelis and Klaus Meerholz",

note = "The authors thank Merck KGaA (Frankfurt) for providing the B1 and B2 polymers and acknowledge financial support from the German Ministry of Science and Education (BMBF) through the HOBBIT-project (13N8952, 13N8951).",

year = "2009",

month = jun,

day = "30",

doi = "10.1063/1.3159836",

language = "English",

volume = "94",

pages = "263301",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Measuring the profile of the emission zone in polymeric organic light-emitting diodes

AU - Gather, Malte Christian

AU - Flämmich, Michael

AU - Danz, Norbert

AU - Michaelis, Dirk

AU - Meerholz, Klaus

N1 - The authors thank Merck KGaA (Frankfurt) for providing the B1 and B2 polymers and acknowledge financial support from the German Ministry of Science and Education (BMBF) through the HOBBIT-project (13N8952, 13N8951).

PY - 2009/6/30

Y1 - 2009/6/30

N2 - The profile of the emission zone (PEZ) in the emissive layer (EML) of polymericorganic light-emitting diodes(OLEDs) is determined by fitting the measured electroluminescencespectrum of the device with a series of simulated spectra that correspond to different emitter locations. The studied OLEDs are based on two different blue-emitting conjugated polymers. In one case, the PEZ is confined to a 10 nm thin sheet at the anode indicating electron dominated current in the EML. In OLEDs based on the other emitter, the PEZ spreads over the entire EML.

AB - The profile of the emission zone (PEZ) in the emissive layer (EML) of polymericorganic light-emitting diodes(OLEDs) is determined by fitting the measured electroluminescencespectrum of the device with a series of simulated spectra that correspond to different emitter locations. The studied OLEDs are based on two different blue-emitting conjugated polymers. In one case, the PEZ is confined to a 10 nm thin sheet at the anode indicating electron dominated current in the EML. In OLEDs based on the other emitter, the PEZ spreads over the entire EML.

KW - Organic light emitting diodes

KW - POLYMERS

KW - Emission spectra

KW - ANODES

KW - CATHODES

UR - https://www.scopus.com/pages/publications/67649992489

U2 - 10.1063/1.3159836

DO - 10.1063/1.3159836

M3 - Article

SN - 0003-6951

VL - 94

SP - 263301

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 26

ER -

Measuring the profile of the emission zone in polymeric organic light-emitting diodes

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