Enhanced polymer light-emitting diode performance using a crosslinked-network electron-blocking interlayer

He Yan; Brian J. Scott; Qinglan Huang; Tobin J. Marks

doi:10.1002/adma.200400627

Enhanced polymer light-emitting diode performance using a crosslinked-network electron-blocking interlayer

He Yan, Brian J. Scott, Qinglan Huang, Tobin J. Marks

Northwestern University

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

101 Citations (Scopus)

Abstract

The electron-blocking properties of poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) (PEDOT-PSS), hole-transport layer (HTL) at the HTL/EML was analyzed. It was found that the electron-blocking capacity of PEDOT-PSS was significantly weaker than that of standard triarylamine electron-blockers. The triarylamine structures were modified to produce a family of crosslinkable, electron-blocking siloxanes yielding insoluble, adherent, crosslinked, triarylamine networks which functioned as efficient electron-blocking interlayers (EBLs) for multilayers polymer-based light emitting diodes (PLED). The results show that insertion of these EBLs between PLED, HTL and EML components can dramatically enhanced the device performance.

Original language	English
Pages (from-to)	1948-1953
Number of pages	6
Journal	Advanced Materials
Volume	16
Issue number	21
DOIs	https://doi.org/10.1002/adma.200400627
Publication status	Published - Nov 4 2004

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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abstract = "The electron-blocking properties of poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) (PEDOT-PSS), hole-transport layer (HTL) at the HTL/EML was analyzed. It was found that the electron-blocking capacity of PEDOT-PSS was significantly weaker than that of standard triarylamine electron-blockers. The triarylamine structures were modified to produce a family of crosslinkable, electron-blocking siloxanes yielding insoluble, adherent, crosslinked, triarylamine networks which functioned as efficient electron-blocking interlayers (EBLs) for multilayers polymer-based light emitting diodes (PLED). The results show that insertion of these EBLs between PLED, HTL and EML components can dramatically enhanced the device performance.",

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