An ionic terfluorene derivative for saturated deep-blue solid state light-emitting electrochemical cells

Hsiao Fan Chen; Chih Teng Liao; Te Chuan Chen; Hai Ching Su; Ken Tsung Wong; Tzung Fang Guo

doi:10.1039/c0jm03446k

An ionic terfluorene derivative for saturated deep-blue solid state light-emitting electrochemical cells

Hsiao Fan Chen, Chih Teng Liao, Te Chuan Chen, Hai Ching Su, Ken Tsung Wong, Tzung Fang Guo

Department of Photonics

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

47 Citations (Scopus)

Abstract

In this study, we obtained saturated deep-blue electroluminescence (EL) from solid state light-emitting electrochemical cells (LECs) incorporating the ionic terfluorene derivative 1, which we synthesized through covalent tethering of methylimidazolium moieties as pendent groups of terfluorene. Compound 1 exhibited the deep-blue emission, extremely high quantum yield, and reversible redox behavior that are characteristic of terfluorene derivatives. LEC devices incorporating terfluorene 1 exhibited deep-blue EL with CIE coordinates of (0.159, 0.115) and (0.151, 0.122) in the absence and presence, respectively, of the ionic liquid (IL) BMIM·PF₆. The peak external quantum efficiency and peak power efficiency of 1 in the presence of the IL reached 1.14% and 1.24 lm W^-1, respectively. These CIE coordinates are the most saturated blue emissions ever reported for LECs.

Original language	English
Pages (from-to)	4175-4181
Number of pages	7
Journal	Journal of Materials Chemistry
Volume	21
Issue number	12
DOIs	https://doi.org/10.1039/c0jm03446k
Publication status	Published - 2011 Mar 28

All Science Journal Classification (ASJC) codes

General Chemistry
Materials Chemistry

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title = "An ionic terfluorene derivative for saturated deep-blue solid state light-emitting electrochemical cells",

abstract = "In this study, we obtained saturated deep-blue electroluminescence (EL) from solid state light-emitting electrochemical cells (LECs) incorporating the ionic terfluorene derivative 1, which we synthesized through covalent tethering of methylimidazolium moieties as pendent groups of terfluorene. Compound 1 exhibited the deep-blue emission, extremely high quantum yield, and reversible redox behavior that are characteristic of terfluorene derivatives. LEC devices incorporating terfluorene 1 exhibited deep-blue EL with CIE coordinates of (0.159, 0.115) and (0.151, 0.122) in the absence and presence, respectively, of the ionic liquid (IL) BMIM·PF6. The peak external quantum efficiency and peak power efficiency of 1 in the presence of the IL reached 1.14% and 1.24 lm W-1, respectively. These CIE coordinates are the most saturated blue emissions ever reported for LECs.",

author = "Chen, {Hsiao Fan} and Liao, {Chih Teng} and Chen, {Te Chuan} and Su, {Hai Ching} and Wong, {Ken Tsung} and Guo, {Tzung Fang}",

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doi = "10.1039/c0jm03446k",

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AU - Chen, Hsiao Fan

AU - Liao, Chih Teng

AU - Chen, Te Chuan

AU - Su, Hai Ching

AU - Wong, Ken Tsung

AU - Guo, Tzung Fang

PY - 2011/3/28

Y1 - 2011/3/28

N2 - In this study, we obtained saturated deep-blue electroluminescence (EL) from solid state light-emitting electrochemical cells (LECs) incorporating the ionic terfluorene derivative 1, which we synthesized through covalent tethering of methylimidazolium moieties as pendent groups of terfluorene. Compound 1 exhibited the deep-blue emission, extremely high quantum yield, and reversible redox behavior that are characteristic of terfluorene derivatives. LEC devices incorporating terfluorene 1 exhibited deep-blue EL with CIE coordinates of (0.159, 0.115) and (0.151, 0.122) in the absence and presence, respectively, of the ionic liquid (IL) BMIM·PF6. The peak external quantum efficiency and peak power efficiency of 1 in the presence of the IL reached 1.14% and 1.24 lm W-1, respectively. These CIE coordinates are the most saturated blue emissions ever reported for LECs.

AB - In this study, we obtained saturated deep-blue electroluminescence (EL) from solid state light-emitting electrochemical cells (LECs) incorporating the ionic terfluorene derivative 1, which we synthesized through covalent tethering of methylimidazolium moieties as pendent groups of terfluorene. Compound 1 exhibited the deep-blue emission, extremely high quantum yield, and reversible redox behavior that are characteristic of terfluorene derivatives. LEC devices incorporating terfluorene 1 exhibited deep-blue EL with CIE coordinates of (0.159, 0.115) and (0.151, 0.122) in the absence and presence, respectively, of the ionic liquid (IL) BMIM·PF6. The peak external quantum efficiency and peak power efficiency of 1 in the presence of the IL reached 1.14% and 1.24 lm W-1, respectively. These CIE coordinates are the most saturated blue emissions ever reported for LECs.

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An ionic terfluorene derivative for saturated deep-blue solid state light-emitting electrochemical cells

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