"Click" synthesis of a bipolar dendrimer as a host material for electrophosphorescent devices

Jun Yang; Tengling Ye; Qing Zhang; Dongge Ma

doi:10.1002/macp.201000197

"Click" synthesis of a bipolar dendrimer as a host material for electrophosphorescent devices

Jun Yang^*
, Tengling Ye
, Qing Zhang
, Dongge Ma

^*Corresponding author for this work

Shanghai Jiao Tong University
CAS - Changchun Institute of Applied Chemistry

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

11 Scopus citations

Abstract

A new solution-processable bipolar dendrimer with carbazole units as hole-transporting units and oxadiazole units as electron-transporting units was efficiently synthesized based on a convergent approach by alternation of a Cu-catalyzed azide/alkyne cycloaddition reaction and Williamson ether synthesis. The orthogonal chemistry completely avoided protection and activation of the focal points in the process of dendrimer synthesis. The dendrimer showed a wide bandgap and good thermal stability. Electrophosphorescent devices with the configuration ITO/PEDOT:PSS/bipolar dendrimer: Ir(ppy)3/TPBI/LiF/Al were fabricated. The devices showed a maximum current efficiency of 16.8 cd .A ^-1, a maximum power efficiency of 4.22 lm .W^-1 and an external quantum efficiency of 5.7%. 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Original language	English
Pages (from-to)	1969-1976
Number of pages	8
Journal	Macromolecular Chemistry and Physics
Volume	211
Issue number	18
DOIs	https://doi.org/10.1002/macp.201000197
State	Published - 15 Sep 2010
Externally published	Yes

Keywords

Click chemistry
Convergent orthogonal strategy
Dendrimers
Electrophosphorescence
Light-emitting diodes

Access to Document

10.1002/macp.201000197

Cite this

@article{92a2ca046a64466f82b26ee8921e9aca,

title = "{"}Click{"} synthesis of a bipolar dendrimer as a host material for electrophosphorescent devices",

abstract = "A new solution-processable bipolar dendrimer with carbazole units as hole-transporting units and oxadiazole units as electron-transporting units was efficiently synthesized based on a convergent approach by alternation of a Cu-catalyzed azide/alkyne cycloaddition reaction and Williamson ether synthesis. The orthogonal chemistry completely avoided protection and activation of the focal points in the process of dendrimer synthesis. The dendrimer showed a wide bandgap and good thermal stability. Electrophosphorescent devices with the configuration ITO/PEDOT:PSS/bipolar dendrimer: Ir(ppy)3/TPBI/LiF/Al were fabricated. The devices showed a maximum current efficiency of 16.8 cd .A -1, a maximum power efficiency of 4.22 lm .W-1 and an external quantum efficiency of 5.7\%. 2010 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

keywords = "Click chemistry, Convergent orthogonal strategy, Dendrimers, Electrophosphorescence, Light-emitting diodes",

author = "Jun Yang and Tengling Ye and Qing Zhang and Dongge Ma",

year = "2010",

month = sep,

day = "15",

doi = "10.1002/macp.201000197",

language = "英语",

volume = "211",

pages = "1969--1976",

journal = "Macromolecular Chemistry and Physics",

issn = "1022-1352",

publisher = "Wiley-VCH Verlag",

number = "18",

}

TY - JOUR

T1 - "Click" synthesis of a bipolar dendrimer as a host material for electrophosphorescent devices

AU - Yang, Jun

AU - Ye, Tengling

AU - Zhang, Qing

AU - Ma, Dongge

PY - 2010/9/15

Y1 - 2010/9/15

N2 - A new solution-processable bipolar dendrimer with carbazole units as hole-transporting units and oxadiazole units as electron-transporting units was efficiently synthesized based on a convergent approach by alternation of a Cu-catalyzed azide/alkyne cycloaddition reaction and Williamson ether synthesis. The orthogonal chemistry completely avoided protection and activation of the focal points in the process of dendrimer synthesis. The dendrimer showed a wide bandgap and good thermal stability. Electrophosphorescent devices with the configuration ITO/PEDOT:PSS/bipolar dendrimer: Ir(ppy)3/TPBI/LiF/Al were fabricated. The devices showed a maximum current efficiency of 16.8 cd .A -1, a maximum power efficiency of 4.22 lm .W-1 and an external quantum efficiency of 5.7%. 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

AB - A new solution-processable bipolar dendrimer with carbazole units as hole-transporting units and oxadiazole units as electron-transporting units was efficiently synthesized based on a convergent approach by alternation of a Cu-catalyzed azide/alkyne cycloaddition reaction and Williamson ether synthesis. The orthogonal chemistry completely avoided protection and activation of the focal points in the process of dendrimer synthesis. The dendrimer showed a wide bandgap and good thermal stability. Electrophosphorescent devices with the configuration ITO/PEDOT:PSS/bipolar dendrimer: Ir(ppy)3/TPBI/LiF/Al were fabricated. The devices showed a maximum current efficiency of 16.8 cd .A -1, a maximum power efficiency of 4.22 lm .W-1 and an external quantum efficiency of 5.7%. 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

KW - Click chemistry

KW - Convergent orthogonal strategy

KW - Dendrimers

KW - Electrophosphorescence

KW - Light-emitting diodes

UR - https://www.scopus.com/pages/publications/77956332028

U2 - 10.1002/macp.201000197

DO - 10.1002/macp.201000197

M3 - 文章

AN - SCOPUS:77956332028

SN - 1022-1352

VL - 211

SP - 1969

EP - 1976

JO - Macromolecular Chemistry and Physics

JF - Macromolecular Chemistry and Physics

IS - 18

ER -

"Click" synthesis of a bipolar dendrimer as a host material for electrophosphorescent devices

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this