Charge injection in polymer light-emitting diodes

T. van Woudenbergh; P.W.M. Blom; J.N. Huiberts

doi:10.1007/3-540-45618-X_39

Charge injection in polymer light-emitting diodes

T. van Woudenbergh, P.W.M. Blom, J.N. Huiberts

Zernike Institute for Advanced Materials

Research output: Chapter in Book/Report/Conference proceeding › Chapter › Academic › peer-review

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Abstract

The injection-limited hole current from Ag into poly-dialkoxy-p-phenylene vinylene (PPV) exhibits a weak dependence on temperature, in spite of the presence of a large injection barrier of 1 eV. The measured field- and temperature dependence of the hole injection is explained by a hopping model in which energetic disorder is taken into account. In a PPV-based light-emitting diode it is demonstrated that the hole injection is enhanced by the presence of electrons. As a mechanism for this enhanced hole injection an increase of the electric field at the hole injecting contact due to trapped electrons is proposed.

Original language	English
Title of host publication	Advances in Solid State Physics
Publisher	Springer
Pages	495-503
Number of pages	9
Volume	42
DOIs	https://doi.org/10.1007/3-540-45618-X_39
Publication status	Published - 2002
Event	Spring Meeting of the Deutsche-Physikalische-Gesellschaft - , Germany Duration: 25-Mar-2002 → 29-Mar-2002

Other

Other	Spring Meeting of the Deutsche-Physikalische-Gesellschaft
Country	Germany
Period	25/03/2002 → 29/03/2002

Keywords

MONTE-CARLO SIMULATION
POLY(P-PHENYLENE VINYLENE)
HOLE TRANSPORT
DEPENDENCE
ELECTRON

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10.1007/3-540-45618-X_39

2002AdvSolidStatePhysvWoudenbergh.PDFFinal publisher's version, 74.2 KB

Cite this

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title = "Charge injection in polymer light-emitting diodes",

abstract = "The injection-limited hole current from Ag into poly-dialkoxy-p-phenylene vinylene (PPV) exhibits a weak dependence on temperature, in spite of the presence of a large injection barrier of 1 eV. The measured field- and temperature dependence of the hole injection is explained by a hopping model in which energetic disorder is taken into account. In a PPV-based light-emitting diode it is demonstrated that the hole injection is enhanced by the presence of electrons. As a mechanism for this enhanced hole injection an increase of the electric field at the hole injecting contact due to trapped electrons is proposed.",

keywords = "MONTE-CARLO SIMULATION, POLY(P-PHENYLENE VINYLENE), HOLE TRANSPORT, DEPENDENCE, ELECTRON",

author = "{van Woudenbergh}, T. and P.W.M. Blom and J.N. Huiberts",

note = "Relation: http://www.rug.nl/zernike/ date_submitted:2009 Rights: University of Groningen. Zernike Institute for Advanced Materials; Spring Meeting of the Deutsche-Physikalische-Gesellschaft ; Conference date: 25-03-2002 Through 29-03-2002",

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TY - CHAP

T1 - Charge injection in polymer light-emitting diodes

AU - van Woudenbergh, T.

AU - Blom, P.W.M.

AU - Huiberts, J.N.

N1 - Relation: http://www.rug.nl/zernike/ date_submitted:2009 Rights: University of Groningen. Zernike Institute for Advanced Materials

PY - 2002

Y1 - 2002

N2 - The injection-limited hole current from Ag into poly-dialkoxy-p-phenylene vinylene (PPV) exhibits a weak dependence on temperature, in spite of the presence of a large injection barrier of 1 eV. The measured field- and temperature dependence of the hole injection is explained by a hopping model in which energetic disorder is taken into account. In a PPV-based light-emitting diode it is demonstrated that the hole injection is enhanced by the presence of electrons. As a mechanism for this enhanced hole injection an increase of the electric field at the hole injecting contact due to trapped electrons is proposed.

AB - The injection-limited hole current from Ag into poly-dialkoxy-p-phenylene vinylene (PPV) exhibits a weak dependence on temperature, in spite of the presence of a large injection barrier of 1 eV. The measured field- and temperature dependence of the hole injection is explained by a hopping model in which energetic disorder is taken into account. In a PPV-based light-emitting diode it is demonstrated that the hole injection is enhanced by the presence of electrons. As a mechanism for this enhanced hole injection an increase of the electric field at the hole injecting contact due to trapped electrons is proposed.

KW - MONTE-CARLO SIMULATION

KW - POLY(P-PHENYLENE VINYLENE)

KW - HOLE TRANSPORT

KW - DEPENDENCE

KW - ELECTRON

U2 - 10.1007/3-540-45618-X_39

DO - 10.1007/3-540-45618-X_39

M3 - Chapter

VL - 42

SP - 495

EP - 503

BT - Advances in Solid State Physics

PB - Springer

T2 - Spring Meeting of the Deutsche-Physikalische-Gesellschaft

Y2 - 25 March 2002 through 29 March 2002

ER -