Copoly(p-phenylene)s containing bipolar triphenylamine and 1,2,4-triazole groups

Synthesis, optoelectronic properties, and applications

Chia Shing Wu, Yun Chen

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Two novel copoly(p-phenylene)s (P1-P2) containing bipolar groups (12.8 and 6.8 mol %, respectively), directly linked hole transporting triphenylamine and electron transporting aromatic 1,2,4-triazole, were synthesized to enhance electroluminescence (EL) of poly(p-phenylene vinylene) (PPV) derivatives. The bipolar groups not only enhance thermal stability but also promote electron affinity and hole affinity of the resulting copoly(p-phenylene)s. Blending the bipolar copoly-(p-phenylene)s (P1-P2) with PPV derivatives (d6-PPV) as an emitting layer effectively improve the emission efficiency of its electroluminescent devices [indium tin oxide (ITO)/poly(3,4- ethylenedioxythiophene) (PEDOT):poly(styrenesulfonate) (PSS)/polymer blend/Ca (50 nm)/Al (100 nm)]. The maximum luminance and maximum luminance efficiency were significantly enhanced from 310 cd m-2 and 0.03 cd A -1 (d6-PPV-based device) to 1450 cd m-2 and 0.20 cd A -1 (blend device with d6-PPV/P1 = 96/4 containing ~0.5 wt % of bipolar groups), respectively. Our results demonstrate the efficacy of the copoly(p-phenylene)s with bipolar groups in enhancing EL of PPV derivatives.

Original languageEnglish
Pages (from-to)5727-5736
Number of pages10
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume48
Issue number24
DOIs
Publication statusPublished - 2010 Dec 15

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Optoelectronic devices
Electroluminescence
Derivatives
Luminance
Luminescent devices
Electron affinity
Polymer blends
Tin oxides
Indium
Thermodynamic stability
Electrons
1,2,4-triazole
poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)
indium tin oxide
poly(4-phenylenevinylene)

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

@article{a33947b4143848bf86d22d88204462bf,
title = "Copoly(p-phenylene)s containing bipolar triphenylamine and 1,2,4-triazole groups: Synthesis, optoelectronic properties, and applications",
abstract = "Two novel copoly(p-phenylene)s (P1-P2) containing bipolar groups (12.8 and 6.8 mol {\%}, respectively), directly linked hole transporting triphenylamine and electron transporting aromatic 1,2,4-triazole, were synthesized to enhance electroluminescence (EL) of poly(p-phenylene vinylene) (PPV) derivatives. The bipolar groups not only enhance thermal stability but also promote electron affinity and hole affinity of the resulting copoly(p-phenylene)s. Blending the bipolar copoly-(p-phenylene)s (P1-P2) with PPV derivatives (d6-PPV) as an emitting layer effectively improve the emission efficiency of its electroluminescent devices [indium tin oxide (ITO)/poly(3,4- ethylenedioxythiophene) (PEDOT):poly(styrenesulfonate) (PSS)/polymer blend/Ca (50 nm)/Al (100 nm)]. The maximum luminance and maximum luminance efficiency were significantly enhanced from 310 cd m-2 and 0.03 cd A -1 (d6-PPV-based device) to 1450 cd m-2 and 0.20 cd A -1 (blend device with d6-PPV/P1 = 96/4 containing ~0.5 wt {\%} of bipolar groups), respectively. Our results demonstrate the efficacy of the copoly(p-phenylene)s with bipolar groups in enhancing EL of PPV derivatives.",
author = "Wu, {Chia Shing} and Yun Chen",
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Y1 - 2010/12/15

N2 - Two novel copoly(p-phenylene)s (P1-P2) containing bipolar groups (12.8 and 6.8 mol %, respectively), directly linked hole transporting triphenylamine and electron transporting aromatic 1,2,4-triazole, were synthesized to enhance electroluminescence (EL) of poly(p-phenylene vinylene) (PPV) derivatives. The bipolar groups not only enhance thermal stability but also promote electron affinity and hole affinity of the resulting copoly(p-phenylene)s. Blending the bipolar copoly-(p-phenylene)s (P1-P2) with PPV derivatives (d6-PPV) as an emitting layer effectively improve the emission efficiency of its electroluminescent devices [indium tin oxide (ITO)/poly(3,4- ethylenedioxythiophene) (PEDOT):poly(styrenesulfonate) (PSS)/polymer blend/Ca (50 nm)/Al (100 nm)]. The maximum luminance and maximum luminance efficiency were significantly enhanced from 310 cd m-2 and 0.03 cd A -1 (d6-PPV-based device) to 1450 cd m-2 and 0.20 cd A -1 (blend device with d6-PPV/P1 = 96/4 containing ~0.5 wt % of bipolar groups), respectively. Our results demonstrate the efficacy of the copoly(p-phenylene)s with bipolar groups in enhancing EL of PPV derivatives.

AB - Two novel copoly(p-phenylene)s (P1-P2) containing bipolar groups (12.8 and 6.8 mol %, respectively), directly linked hole transporting triphenylamine and electron transporting aromatic 1,2,4-triazole, were synthesized to enhance electroluminescence (EL) of poly(p-phenylene vinylene) (PPV) derivatives. The bipolar groups not only enhance thermal stability but also promote electron affinity and hole affinity of the resulting copoly(p-phenylene)s. Blending the bipolar copoly-(p-phenylene)s (P1-P2) with PPV derivatives (d6-PPV) as an emitting layer effectively improve the emission efficiency of its electroluminescent devices [indium tin oxide (ITO)/poly(3,4- ethylenedioxythiophene) (PEDOT):poly(styrenesulfonate) (PSS)/polymer blend/Ca (50 nm)/Al (100 nm)]. The maximum luminance and maximum luminance efficiency were significantly enhanced from 310 cd m-2 and 0.03 cd A -1 (d6-PPV-based device) to 1450 cd m-2 and 0.20 cd A -1 (blend device with d6-PPV/P1 = 96/4 containing ~0.5 wt % of bipolar groups), respectively. Our results demonstrate the efficacy of the copoly(p-phenylene)s with bipolar groups in enhancing EL of PPV derivatives.

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