Organic light-emitting devices (OLED) based on new triphenylamine derivatives

Chuanyang Xia; Xiaomei Wang; Jian Lin; Wanli Jiang; Yuan Ni; Wei Huang

doi:10.1016/j.synthmet.2008.08.014

Organic light-emitting devices (OLED) based on new triphenylamine derivatives

Chuanyang Xia
, Xiaomei Wang
, Jian Lin
, Wanli Jiang
, Yuan Ni
, Wei Huang

Soochow University
Fudan University
Shandong University
Nanjing University of Posts and Telecommunications

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

26 Scopus citations

Abstract

In this paper, we reported the synthesis of two new triphenylamine derivatives: 1,4-bis[-E-4-(N,N-diphenylamino)styryl]naphthalene (Np-G1) and 2,8-bis[-E-4-(N,N-diphenylamino) styryl]dibenzothiophene (ST-G1) and investigated the electroluminescence characteristics of the three-layer devices with Np-G1 or ST-G1 as emitting layer. The results have shown that introduction electron-acceptor group, naphthalene, into triphenylamine units, Np-G1 with linear geometric conformation can lower its LUMO level obviously and resulting facilitate electron injection and transport for the device. Thus, the three-layer device (ITO/TCTA/Np-G1/BCP /Mg:Ag) improved the electroluminescence properties the best, presenting the brightness of ∼10,000 cd/m² and current efficiency of ∼3.0 cd/A. On the other hand, ST-G1 with V-shaped conformation containing dibenzothiophene linked triphenylamine groups cannot effectively decreased its LUMO level. As a result, ST-G1 has little contribution to the carrier recombination within itself.

Original language	English
Pages (from-to)	194-200
Number of pages	7
Journal	Synthetic Metals
Volume	159
Issue number	3-4
DOIs	https://doi.org/10.1016/j.synthmet.2008.08.014
State	Published - Feb 2009
Externally published	Yes

Keywords

Dibenzothiophene
Electrochemical behavior
Electroluminescence
Geometrical structure
Naphthaline
Triphenylamine

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10.1016/j.synthmet.2008.08.014

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title = "Organic light-emitting devices (OLED) based on new triphenylamine derivatives",

abstract = "In this paper, we reported the synthesis of two new triphenylamine derivatives: 1,4-bis[-E-4-(N,N-diphenylamino)styryl]naphthalene (Np-G1) and 2,8-bis[-E-4-(N,N-diphenylamino) styryl]dibenzothiophene (ST-G1) and investigated the electroluminescence characteristics of the three-layer devices with Np-G1 or ST-G1 as emitting layer. The results have shown that introduction electron-acceptor group, naphthalene, into triphenylamine units, Np-G1 with linear geometric conformation can lower its LUMO level obviously and resulting facilitate electron injection and transport for the device. Thus, the three-layer device (ITO/TCTA/Np-G1/BCP /Mg:Ag) improved the electroluminescence properties the best, presenting the brightness of ∼10,000 cd/m2 and current efficiency of ∼3.0 cd/A. On the other hand, ST-G1 with V-shaped conformation containing dibenzothiophene linked triphenylamine groups cannot effectively decreased its LUMO level. As a result, ST-G1 has little contribution to the carrier recombination within itself.",

keywords = "Dibenzothiophene, Electrochemical behavior, Electroluminescence, Geometrical structure, Naphthaline, Triphenylamine",

author = "Chuanyang Xia and Xiaomei Wang and Jian Lin and Wanli Jiang and Yuan Ni and Wei Huang",

year = "2009",

month = feb,

doi = "10.1016/j.synthmet.2008.08.014",

language = "英语",

volume = "159",

pages = "194--200",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier B.V.",

number = "3-4",

}

TY - JOUR

T1 - Organic light-emitting devices (OLED) based on new triphenylamine derivatives

AU - Xia, Chuanyang

AU - Wang, Xiaomei

AU - Lin, Jian

AU - Jiang, Wanli

AU - Ni, Yuan

AU - Huang, Wei

PY - 2009/2

Y1 - 2009/2

N2 - In this paper, we reported the synthesis of two new triphenylamine derivatives: 1,4-bis[-E-4-(N,N-diphenylamino)styryl]naphthalene (Np-G1) and 2,8-bis[-E-4-(N,N-diphenylamino) styryl]dibenzothiophene (ST-G1) and investigated the electroluminescence characteristics of the three-layer devices with Np-G1 or ST-G1 as emitting layer. The results have shown that introduction electron-acceptor group, naphthalene, into triphenylamine units, Np-G1 with linear geometric conformation can lower its LUMO level obviously and resulting facilitate electron injection and transport for the device. Thus, the three-layer device (ITO/TCTA/Np-G1/BCP /Mg:Ag) improved the electroluminescence properties the best, presenting the brightness of ∼10,000 cd/m2 and current efficiency of ∼3.0 cd/A. On the other hand, ST-G1 with V-shaped conformation containing dibenzothiophene linked triphenylamine groups cannot effectively decreased its LUMO level. As a result, ST-G1 has little contribution to the carrier recombination within itself.

AB - In this paper, we reported the synthesis of two new triphenylamine derivatives: 1,4-bis[-E-4-(N,N-diphenylamino)styryl]naphthalene (Np-G1) and 2,8-bis[-E-4-(N,N-diphenylamino) styryl]dibenzothiophene (ST-G1) and investigated the electroluminescence characteristics of the three-layer devices with Np-G1 or ST-G1 as emitting layer. The results have shown that introduction electron-acceptor group, naphthalene, into triphenylamine units, Np-G1 with linear geometric conformation can lower its LUMO level obviously and resulting facilitate electron injection and transport for the device. Thus, the three-layer device (ITO/TCTA/Np-G1/BCP /Mg:Ag) improved the electroluminescence properties the best, presenting the brightness of ∼10,000 cd/m2 and current efficiency of ∼3.0 cd/A. On the other hand, ST-G1 with V-shaped conformation containing dibenzothiophene linked triphenylamine groups cannot effectively decreased its LUMO level. As a result, ST-G1 has little contribution to the carrier recombination within itself.

KW - Dibenzothiophene

KW - Electrochemical behavior

KW - Electroluminescence

KW - Geometrical structure

KW - Naphthaline

KW - Triphenylamine

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U2 - 10.1016/j.synthmet.2008.08.014

DO - 10.1016/j.synthmet.2008.08.014

M3 - 文章

AN - SCOPUS:60449093711

SN - 0379-6779

VL - 159

SP - 194

EP - 200

JO - Synthetic Metals

JF - Synthetic Metals

IS - 3-4

ER -

Organic light-emitting devices (OLED) based on new triphenylamine derivatives

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Keywords

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