Conjugated zwitterionic polyelectrolyte as the charge injection layer for high-performance polymer light-emitting diodes

Junfeng Fang; Bodo H. Wallikewitz; Feng Gao; Guoli Tu; Christian Müller; Giuseppina Pace; Richard H. Friend; Wilhelm T.S. Huck

doi:10.1021/ja108541z

Conjugated zwitterionic polyelectrolyte as the charge injection layer for high-performance polymer light-emitting diodes

Junfeng Fang
, Bodo H. Wallikewitz
, Feng Gao
, Guoli Tu
, Christian Müller
, Giuseppina Pace
, Richard H. Friend
, Wilhelm T.S. Huck

University of Cambridge
Huazhong University of Science and Technology
Radboud University Nijmegen

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

188 Scopus citations

Abstract

A new zwitterionic conjugated polyelectrolyte without free counterions has been used as an electron injection material in polymer light-emitting diodes. Both the efficiency and maximum brightness were considerably improved in comparison with standard Ca cathode devices. The devices showed very fast response times, indicating that the improved performance is, in addition to hole blocking, due to dipoles at the cathode interface, which facilitate electron injection.

Original language	English
Pages (from-to)	683-685
Number of pages	3
Journal	Journal of the American Chemical Society
Volume	133
Issue number	4
DOIs	https://doi.org/10.1021/ja108541z
State	Published - 2 Feb 2011
Externally published	Yes

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10.1021/ja108541z

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title = "Conjugated zwitterionic polyelectrolyte as the charge injection layer for high-performance polymer light-emitting diodes",

abstract = "A new zwitterionic conjugated polyelectrolyte without free counterions has been used as an electron injection material in polymer light-emitting diodes. Both the efficiency and maximum brightness were considerably improved in comparison with standard Ca cathode devices. The devices showed very fast response times, indicating that the improved performance is, in addition to hole blocking, due to dipoles at the cathode interface, which facilitate electron injection.",

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AU - Fang, Junfeng

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AU - Tu, Guoli

AU - Müller, Christian

AU - Pace, Giuseppina

AU - Friend, Richard H.

AU - Huck, Wilhelm T.S.

PY - 2011/2/2

Y1 - 2011/2/2

N2 - A new zwitterionic conjugated polyelectrolyte without free counterions has been used as an electron injection material in polymer light-emitting diodes. Both the efficiency and maximum brightness were considerably improved in comparison with standard Ca cathode devices. The devices showed very fast response times, indicating that the improved performance is, in addition to hole blocking, due to dipoles at the cathode interface, which facilitate electron injection.

AB - A new zwitterionic conjugated polyelectrolyte without free counterions has been used as an electron injection material in polymer light-emitting diodes. Both the efficiency and maximum brightness were considerably improved in comparison with standard Ca cathode devices. The devices showed very fast response times, indicating that the improved performance is, in addition to hole blocking, due to dipoles at the cathode interface, which facilitate electron injection.

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M3 - 文章

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Conjugated zwitterionic polyelectrolyte as the charge injection layer for high-performance polymer light-emitting diodes

Abstract

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