Possible pore size effects on the state of tris(8-quinolinato)aluminum(iii) (Alq3) adsorbed in mesoporous silicas and their temperature dependence

Motohiro Tagaya, Makoto Ogawa

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The states of tris(8-quinolinato)aluminum(iii) (Alq3) adsorbed in mesoporous silicas with different pore sizes (2.5, 3.1 and 5.0 nm) were investigated. Alq3 was successfully occluded into the mesoporous silicas from solution and the adsorbed amount of Alq3 per BET surface area was effectively controlled by changing the added amount Alq3 to the solution. The state of Alq3 in the mesopore varied depending on the pore size as well as the adsorbed amount of Alq3 as revealed by variation of the photoluminescence spectra. The luminescence of the adsorbed Alq3 was found to be temperature-dependent, indicating the mobility of the adsorbed Alq3 to temperature variations. The temperature-dependence also depended on the pore size. The guest-guest interactions between Alq3 molecules as well as the host-guest interactions between Alq3 and the mesopore were controlled by the pore size.

Original languageEnglish
Pages (from-to)6849-6855
Number of pages7
JournalPhysical Chemistry Chemical Physics
Volume10
Issue number45
DOIs
Publication statusPublished - 2008

Fingerprint

Aluminum
Silicon Dioxide
Pore size
silicon dioxide
aluminum
porosity
temperature dependence
Temperature
Luminescence
Photoluminescence
interactions
luminescence
photoluminescence
Molecules
temperature
molecules

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

Possible pore size effects on the state of tris(8-quinolinato)aluminum(iii) (Alq3) adsorbed in mesoporous silicas and their temperature dependence. / Tagaya, Motohiro; Ogawa, Makoto.

In: Physical Chemistry Chemical Physics, Vol. 10, No. 45, 2008, p. 6849-6855.

Research output: Contribution to journalArticle

@article{5a958908ec74470bace86cde188a3d9b,
title = "Possible pore size effects on the state of tris(8-quinolinato)aluminum(iii) (Alq3) adsorbed in mesoporous silicas and their temperature dependence",
abstract = "The states of tris(8-quinolinato)aluminum(iii) (Alq3) adsorbed in mesoporous silicas with different pore sizes (2.5, 3.1 and 5.0 nm) were investigated. Alq3 was successfully occluded into the mesoporous silicas from solution and the adsorbed amount of Alq3 per BET surface area was effectively controlled by changing the added amount Alq3 to the solution. The state of Alq3 in the mesopore varied depending on the pore size as well as the adsorbed amount of Alq3 as revealed by variation of the photoluminescence spectra. The luminescence of the adsorbed Alq3 was found to be temperature-dependent, indicating the mobility of the adsorbed Alq3 to temperature variations. The temperature-dependence also depended on the pore size. The guest-guest interactions between Alq3 molecules as well as the host-guest interactions between Alq3 and the mesopore were controlled by the pore size.",
author = "Motohiro Tagaya and Makoto Ogawa",
year = "2008",
doi = "10.1039/b807593j",
language = "English",
volume = "10",
pages = "6849--6855",
journal = "Physical Chemistry Chemical Physics",
issn = "1463-9076",
publisher = "Royal Society of Chemistry",
number = "45",

}

TY - JOUR

T1 - Possible pore size effects on the state of tris(8-quinolinato)aluminum(iii) (Alq3) adsorbed in mesoporous silicas and their temperature dependence

AU - Tagaya, Motohiro

AU - Ogawa, Makoto

PY - 2008

Y1 - 2008

N2 - The states of tris(8-quinolinato)aluminum(iii) (Alq3) adsorbed in mesoporous silicas with different pore sizes (2.5, 3.1 and 5.0 nm) were investigated. Alq3 was successfully occluded into the mesoporous silicas from solution and the adsorbed amount of Alq3 per BET surface area was effectively controlled by changing the added amount Alq3 to the solution. The state of Alq3 in the mesopore varied depending on the pore size as well as the adsorbed amount of Alq3 as revealed by variation of the photoluminescence spectra. The luminescence of the adsorbed Alq3 was found to be temperature-dependent, indicating the mobility of the adsorbed Alq3 to temperature variations. The temperature-dependence also depended on the pore size. The guest-guest interactions between Alq3 molecules as well as the host-guest interactions between Alq3 and the mesopore were controlled by the pore size.

AB - The states of tris(8-quinolinato)aluminum(iii) (Alq3) adsorbed in mesoporous silicas with different pore sizes (2.5, 3.1 and 5.0 nm) were investigated. Alq3 was successfully occluded into the mesoporous silicas from solution and the adsorbed amount of Alq3 per BET surface area was effectively controlled by changing the added amount Alq3 to the solution. The state of Alq3 in the mesopore varied depending on the pore size as well as the adsorbed amount of Alq3 as revealed by variation of the photoluminescence spectra. The luminescence of the adsorbed Alq3 was found to be temperature-dependent, indicating the mobility of the adsorbed Alq3 to temperature variations. The temperature-dependence also depended on the pore size. The guest-guest interactions between Alq3 molecules as well as the host-guest interactions between Alq3 and the mesopore were controlled by the pore size.

UR - http://www.scopus.com/inward/record.url?scp=56349105050&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=56349105050&partnerID=8YFLogxK

U2 - 10.1039/b807593j

DO - 10.1039/b807593j

M3 - Article

VL - 10

SP - 6849

EP - 6855

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

SN - 1463-9076

IS - 45

ER -