Photoluminescence properties of copolymers with iridium-complex Ir(thq)2(dbm) units in the fluorene main chain

Taiju Tsuboi; Hui Fang Shi; Yosuke Nakai; Shu Juan Liu; Qiang Zhao; Wei Huang

doi:10.1016/j.phpro.2011.05.008

Photoluminescence properties of copolymers with iridium-complex Ir(thq)₂(dbm) units in the fluorene main chain

Taiju Tsuboi, Hui Fang Shi, Yosuke Nakai, Shu Juan Liu, Qiang Zhao, Wei Huang

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

Copolyfluorenes with various concentrations (2, 4, 8, 12, 16, and 20 %) of red-light emitting Ir(III)-complex Ir(thq)₂(dbm) units on the main chain are synthesized and the photoluminescence is investigated at 298-12 K. The intensity of the emission at about 620 nm increases with increasing the Ir-complex concentration from 2 % to 4 % but decreases with increasing the concentration from 4 % by the concentration quenching, while the blue emission from polyfluorene also decreases by energy transfer to Ircomplex. The two emission intensities increase with decreasing temperature from 298 K to 12 K. The red emission shows a red shift with increasing the concentration, by the solid state solvation effect.

Original language	English
Pages (from-to)	34-37
Number of pages	4
Journal	Physics Procedia
Volume	14
DOIs	https://doi.org/10.1016/j.phpro.2011.05.008
State	Published - 2011
Externally published	Yes
Event	9th International Conference on Nano-Molecular Electronics, ICNME 2010 - Kobe, Japan Duration: 14 Dec 2010 → 16 Dec 2010

Keywords

Energy transfer
Fluorene
Ir-complex
PFO copolymer
Photoluminescence

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10.1016/j.phpro.2011.05.008

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title = "Photoluminescence properties of copolymers with iridium-complex Ir(thq)2(dbm) units in the fluorene main chain",

abstract = "Copolyfluorenes with various concentrations (2, 4, 8, 12, 16, and 20 %) of red-light emitting Ir(III)-complex Ir(thq)2(dbm) units on the main chain are synthesized and the photoluminescence is investigated at 298-12 K. The intensity of the emission at about 620 nm increases with increasing the Ir-complex concentration from 2 % to 4 % but decreases with increasing the concentration from 4 % by the concentration quenching, while the blue emission from polyfluorene also decreases by energy transfer to Ircomplex. The two emission intensities increase with decreasing temperature from 298 K to 12 K. The red emission shows a red shift with increasing the concentration, by the solid state solvation effect.",

keywords = "Energy transfer, Fluorene, Ir-complex, PFO copolymer, Photoluminescence",

author = "Taiju Tsuboi and Shi, {Hui Fang} and Yosuke Nakai and Liu, {Shu Juan} and Qiang Zhao and Wei Huang",

year = "2011",

doi = "10.1016/j.phpro.2011.05.008",

language = "英语",

volume = "14",

pages = "34--37",

journal = "Physics Procedia",

issn = "1875-3884",

publisher = "Elsevier B.V.",

note = "9th International Conference on Nano-Molecular Electronics, ICNME 2010 ; Conference date: 14-12-2010 Through 16-12-2010",

}

TY - JOUR

T1 - Photoluminescence properties of copolymers with iridium-complex Ir(thq)2(dbm) units in the fluorene main chain

AU - Tsuboi, Taiju

AU - Shi, Hui Fang

AU - Nakai, Yosuke

AU - Liu, Shu Juan

AU - Zhao, Qiang

AU - Huang, Wei

PY - 2011

Y1 - 2011

N2 - Copolyfluorenes with various concentrations (2, 4, 8, 12, 16, and 20 %) of red-light emitting Ir(III)-complex Ir(thq)2(dbm) units on the main chain are synthesized and the photoluminescence is investigated at 298-12 K. The intensity of the emission at about 620 nm increases with increasing the Ir-complex concentration from 2 % to 4 % but decreases with increasing the concentration from 4 % by the concentration quenching, while the blue emission from polyfluorene also decreases by energy transfer to Ircomplex. The two emission intensities increase with decreasing temperature from 298 K to 12 K. The red emission shows a red shift with increasing the concentration, by the solid state solvation effect.

AB - Copolyfluorenes with various concentrations (2, 4, 8, 12, 16, and 20 %) of red-light emitting Ir(III)-complex Ir(thq)2(dbm) units on the main chain are synthesized and the photoluminescence is investigated at 298-12 K. The intensity of the emission at about 620 nm increases with increasing the Ir-complex concentration from 2 % to 4 % but decreases with increasing the concentration from 4 % by the concentration quenching, while the blue emission from polyfluorene also decreases by energy transfer to Ircomplex. The two emission intensities increase with decreasing temperature from 298 K to 12 K. The red emission shows a red shift with increasing the concentration, by the solid state solvation effect.

KW - Energy transfer

KW - Fluorene

KW - Ir-complex

KW - PFO copolymer

KW - Photoluminescence

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U2 - 10.1016/j.phpro.2011.05.008

DO - 10.1016/j.phpro.2011.05.008

M3 - 会议文章

AN - SCOPUS:84863134849

SN - 1875-3884

VL - 14

SP - 34

EP - 37

JO - Physics Procedia

JF - Physics Procedia

T2 - 9th International Conference on Nano-Molecular Electronics, ICNME 2010

Y2 - 14 December 2010 through 16 December 2010

ER -

Photoluminescence properties of copolymers with iridium-complex Ir(thq)₂(dbm) units in the fluorene main chain

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Keywords

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