Photoluminescence characteristics of dendrimers containing (tris (8-hydroxyquinoline) aluminum) as a core unit

Shinya Furusake; Sumio Maruyama; Hiroyuki Sasabe; Chihaya Adachi

doi:10.1295/koron.63.675

Photoluminescence characteristics of dendrimers containing (tris (8-hydroxyquinoline) aluminum) as a core unit

Shinya Furusake, Sumio Maruyama, Hiroyuki Sasabe, Chihaya Adachi

Applied Chemistry

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

Abstract

We report on photoluminescence (PL) characteristics of dendrimers having (tris (8-hydroxy quinoline) aluminum) (Alq ₃) as a core unit. Although Alq ₃ derivatives are generally insoluble, the dendrimers were soluble in conventional organic solvents due to the presence of bulky dendron. We measured the transient PL and absolute PL efficiency of the dendrimers, dendron and AlClq ₃ (core unit), and we clarified the location of π-conjugation, which is an origin of PL. The PL characteristics indicated that π-conjugation in the dendrimers is localized between a dendron and a quinoline ligand. Although the PL efficiencies are Φ _PL = 20 - 40% in their solid films, the EL efficiencies are limited to Φ _EL ∼ 10 ^-2%.

Original language	English
Pages (from-to)	675-680
Number of pages	6
Journal	KOBUNSHI RONBUNSHU
Volume	63
Issue number	10
DOIs	https://doi.org/10.1295/koron.63.675
Publication status	Published - Oct 1 2006

All Science Journal Classification (ASJC) codes

Chemical Engineering (miscellaneous)
Materials Science (miscellaneous)
Environmental Science(all)
Polymers and Plastics

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title = "Photoluminescence characteristics of dendrimers containing (tris (8-hydroxyquinoline) aluminum) as a core unit",

abstract = "We report on photoluminescence (PL) characteristics of dendrimers having (tris (8-hydroxy quinoline) aluminum) (Alq 3) as a core unit. Although Alq 3 derivatives are generally insoluble, the dendrimers were soluble in conventional organic solvents due to the presence of bulky dendron. We measured the transient PL and absolute PL efficiency of the dendrimers, dendron and AlClq 3 (core unit), and we clarified the location of π-conjugation, which is an origin of PL. The PL characteristics indicated that π-conjugation in the dendrimers is localized between a dendron and a quinoline ligand. Although the PL efficiencies are Φ PL = 20 - 40% in their solid films, the EL efficiencies are limited to Φ EL ∼ 10 -2%.",

author = "Shinya Furusake and Sumio Maruyama and Hiroyuki Sasabe and Chihaya Adachi",

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T1 - Photoluminescence characteristics of dendrimers containing (tris (8-hydroxyquinoline) aluminum) as a core unit

AU - Furusake, Shinya

AU - Maruyama, Sumio

AU - Sasabe, Hiroyuki

AU - Adachi, Chihaya

PY - 2006/10/1

Y1 - 2006/10/1

N2 - We report on photoluminescence (PL) characteristics of dendrimers having (tris (8-hydroxy quinoline) aluminum) (Alq 3) as a core unit. Although Alq 3 derivatives are generally insoluble, the dendrimers were soluble in conventional organic solvents due to the presence of bulky dendron. We measured the transient PL and absolute PL efficiency of the dendrimers, dendron and AlClq 3 (core unit), and we clarified the location of π-conjugation, which is an origin of PL. The PL characteristics indicated that π-conjugation in the dendrimers is localized between a dendron and a quinoline ligand. Although the PL efficiencies are Φ PL = 20 - 40% in their solid films, the EL efficiencies are limited to Φ EL ∼ 10 -2%.

AB - We report on photoluminescence (PL) characteristics of dendrimers having (tris (8-hydroxy quinoline) aluminum) (Alq 3) as a core unit. Although Alq 3 derivatives are generally insoluble, the dendrimers were soluble in conventional organic solvents due to the presence of bulky dendron. We measured the transient PL and absolute PL efficiency of the dendrimers, dendron and AlClq 3 (core unit), and we clarified the location of π-conjugation, which is an origin of PL. The PL characteristics indicated that π-conjugation in the dendrimers is localized between a dendron and a quinoline ligand. Although the PL efficiencies are Φ PL = 20 - 40% in their solid films, the EL efficiencies are limited to Φ EL ∼ 10 -2%.

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Photoluminescence characteristics of dendrimers containing (tris (8-hydroxyquinoline) aluminum) as a core unit

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