Effect of solution processed hole injection layers on device performance of phosphorescent green OLEDs

Jun Ho Youn; Yeon Il Lee; Mi Sun Ryu; Andreas Elschner; Wilfried Lvenich; Arnulf Scheel; Hie Tae Moon; Jin Jang

doi:10.1149/2.002111jes

Effect of solution processed hole injection layers on device performance of phosphorescent green OLEDs

Jun Ho Youn
, Yeon Il Lee
, Mi Sun Ryu
, Andreas Elschner
, Wilfried Lvenich
, Arnulf Scheel
, Hie Tae Moon
, Jin Jang

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

4 Citations (Scopus)

Abstract

We have studied the effect of hole injection layers (HILs) on the performance of phosphorescent green organic light-emitting diodes (OLEDs). The PEDOT:PSS and other new PEDOT-based materials of HIL 1.3N and HIL 3.3N were used as HILs. The OLED with HIL 1.3N, having the work function of 6.08 eV, exhibits low driving voltage and high efficiency because of the improved hole injection. The position of emission zone, studied by analyzing the electroluminescence spectra, is found to be at the center of the emission layer (EML), while the emission zone is near the interface for the OLEDs with PEDOT:PSS and HIL 3.3N. This is due to the improved charge carrier balance within the EML caused by the efficient HIL of HIL 1.3N.

Original language	English
Pages (from-to)	J321-J325
Journal	Journal of the Electrochemical Society
Volume	158
Issue number	11
DOIs	https://doi.org/10.1149/2.002111jes
Publication status	Published - 2011

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10.1149/2.002111jes

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title = "Effect of solution processed hole injection layers on device performance of phosphorescent green OLEDs",

abstract = "We have studied the effect of hole injection layers (HILs) on the performance of phosphorescent green organic light-emitting diodes (OLEDs). The PEDOT:PSS and other new PEDOT-based materials of HIL 1.3N and HIL 3.3N were used as HILs. The OLED with HIL 1.3N, having the work function of 6.08 eV, exhibits low driving voltage and high efficiency because of the improved hole injection. The position of emission zone, studied by analyzing the electroluminescence spectra, is found to be at the center of the emission layer (EML), while the emission zone is near the interface for the OLEDs with PEDOT:PSS and HIL 3.3N. This is due to the improved charge carrier balance within the EML caused by the efficient HIL of HIL 1.3N.",

author = "Youn, \{Jun Ho\} and Lee, \{Yeon Il\} and Ryu, \{Mi Sun\} and Andreas Elschner and Wilfried Lvenich and Arnulf Scheel and Moon, \{Hie Tae\} and Jin Jang",

year = "2011",

doi = "10.1149/2.002111jes",

language = "English",

volume = "158",

pages = "J321--J325",

journal = "Journal of the Electrochemical Society",

issn = "0013-4651",

publisher = "Institute of Physics",

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}

TY - JOUR

T1 - Effect of solution processed hole injection layers on device performance of phosphorescent green OLEDs

AU - Youn, Jun Ho

AU - Lee, Yeon Il

AU - Ryu, Mi Sun

AU - Elschner, Andreas

AU - Lvenich, Wilfried

AU - Scheel, Arnulf

AU - Moon, Hie Tae

AU - Jang, Jin

PY - 2011

Y1 - 2011

N2 - We have studied the effect of hole injection layers (HILs) on the performance of phosphorescent green organic light-emitting diodes (OLEDs). The PEDOT:PSS and other new PEDOT-based materials of HIL 1.3N and HIL 3.3N were used as HILs. The OLED with HIL 1.3N, having the work function of 6.08 eV, exhibits low driving voltage and high efficiency because of the improved hole injection. The position of emission zone, studied by analyzing the electroluminescence spectra, is found to be at the center of the emission layer (EML), while the emission zone is near the interface for the OLEDs with PEDOT:PSS and HIL 3.3N. This is due to the improved charge carrier balance within the EML caused by the efficient HIL of HIL 1.3N.

AB - We have studied the effect of hole injection layers (HILs) on the performance of phosphorescent green organic light-emitting diodes (OLEDs). The PEDOT:PSS and other new PEDOT-based materials of HIL 1.3N and HIL 3.3N were used as HILs. The OLED with HIL 1.3N, having the work function of 6.08 eV, exhibits low driving voltage and high efficiency because of the improved hole injection. The position of emission zone, studied by analyzing the electroluminescence spectra, is found to be at the center of the emission layer (EML), while the emission zone is near the interface for the OLEDs with PEDOT:PSS and HIL 3.3N. This is due to the improved charge carrier balance within the EML caused by the efficient HIL of HIL 1.3N.

UR - https://www.scopus.com/pages/publications/80054016157

U2 - 10.1149/2.002111jes

DO - 10.1149/2.002111jes

M3 - Article

AN - SCOPUS:80054016157

SN - 0013-4651

VL - 158

SP - J321-J325

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 11

ER -

Effect of solution processed hole injection layers on device performance of phosphorescent green OLEDs

Abstract

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