Formation of gap states and enhanced current injection efficiency in organic light emitting diodes incorporated with subphthalocyanine

Yu Hung Chen; Yu Jen Chang; Guan Ru Lee; Jung Hung Chang; I. Wen Wu; Jheng Hao Fang; Shu Han Hsu; Shun Wei Liu; Chih I. Wu; Tun Wen Pi

doi:10.1016/j.orgel.2009.11.025

Formation of gap states and enhanced current injection efficiency in organic light emitting diodes incorporated with subphthalocyanine

Yu Hung Chen
, Yu Jen Chang
, Guan Ru Lee
, Jung Hung Chang
, I. Wen Wu
, Jheng Hao Fang
, Shu Han Hsu
, Shun Wei Liu
, Chih I. Wu
, Tun Wen Pi

Department of Computer Science and Information Engineering

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

18 Citations (Scopus)

Abstract

The improvement of current injection efficiency in organic light emitting diodes is demonstrated with incorporation of SubPc-doped NPB as hole injection layers. The photoemission spectra illustrate the presence of gap states and the occurrence of axial reaction on SubPc with NPB. Quantum chemistry calculation provides simulated valence-band spectra indicating that the formation of gap states is due to the HOMOs of new complexes created from the reaction of SubPc and NPB, which facilitate the hole injection at the anode interfaces.

Original language	English
Pages (from-to)	445-449
Number of pages	5
Journal	Organic Electronics
Volume	11
Issue number	3
DOIs	https://doi.org/10.1016/j.orgel.2009.11.025
Publication status	Published - 2010 Mar

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
General Chemistry
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering
Biomaterials

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10.1016/j.orgel.2009.11.025

Cite this

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title = "Formation of gap states and enhanced current injection efficiency in organic light emitting diodes incorporated with subphthalocyanine",

abstract = "The improvement of current injection efficiency in organic light emitting diodes is demonstrated with incorporation of SubPc-doped NPB as hole injection layers. The photoemission spectra illustrate the presence of gap states and the occurrence of axial reaction on SubPc with NPB. Quantum chemistry calculation provides simulated valence-band spectra indicating that the formation of gap states is due to the HOMOs of new complexes created from the reaction of SubPc and NPB, which facilitate the hole injection at the anode interfaces.",

author = "Chen, \{Yu Hung\} and Chang, \{Yu Jen\} and Lee, \{Guan Ru\} and Chang, \{Jung Hung\} and Wu, \{I. Wen\} and Fang, \{Jheng Hao\} and Hsu, \{Shu Han\} and Liu, \{Shun Wei\} and Wu, \{Chih I.\} and Pi, \{Tun Wen\}",

note = "Funding Information: This work was partially supported by the National Science Council, Republic of China, under contract No. NSC95-2745-M-002-011. We are also grateful to Computer and Information Networking Center, National Taiwan University for the support of high-performance computing facilities. ",

year = "2010",

month = mar,

doi = "10.1016/j.orgel.2009.11.025",

language = "English",

volume = "11",

pages = "445--449",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier BV",

number = "3",

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TY - JOUR

T1 - Formation of gap states and enhanced current injection efficiency in organic light emitting diodes incorporated with subphthalocyanine

AU - Chen, Yu Hung

AU - Chang, Yu Jen

AU - Lee, Guan Ru

AU - Chang, Jung Hung

AU - Wu, I. Wen

AU - Fang, Jheng Hao

AU - Hsu, Shu Han

AU - Liu, Shun Wei

AU - Wu, Chih I.

AU - Pi, Tun Wen

N1 - Funding Information: This work was partially supported by the National Science Council, Republic of China, under contract No. NSC95-2745-M-002-011. We are also grateful to Computer and Information Networking Center, National Taiwan University for the support of high-performance computing facilities.

PY - 2010/3

Y1 - 2010/3

N2 - The improvement of current injection efficiency in organic light emitting diodes is demonstrated with incorporation of SubPc-doped NPB as hole injection layers. The photoemission spectra illustrate the presence of gap states and the occurrence of axial reaction on SubPc with NPB. Quantum chemistry calculation provides simulated valence-band spectra indicating that the formation of gap states is due to the HOMOs of new complexes created from the reaction of SubPc and NPB, which facilitate the hole injection at the anode interfaces.

AB - The improvement of current injection efficiency in organic light emitting diodes is demonstrated with incorporation of SubPc-doped NPB as hole injection layers. The photoemission spectra illustrate the presence of gap states and the occurrence of axial reaction on SubPc with NPB. Quantum chemistry calculation provides simulated valence-band spectra indicating that the formation of gap states is due to the HOMOs of new complexes created from the reaction of SubPc and NPB, which facilitate the hole injection at the anode interfaces.

UR - https://www.scopus.com/pages/publications/75449089188

UR - https://www.scopus.com/pages/publications/75449089188#tab=citedBy

U2 - 10.1016/j.orgel.2009.11.025

DO - 10.1016/j.orgel.2009.11.025

M3 - Article

AN - SCOPUS:75449089188

SN - 1566-1199

VL - 11

SP - 445

EP - 449

JO - Organic Electronics

JF - Organic Electronics

IS - 3

ER -

Formation of gap states and enhanced current injection efficiency in organic light emitting diodes incorporated with subphthalocyanine

Abstract

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