Cited by 128Mesoporous Materials and CatalysisLanthanide and Transition Metal ComplexesLuminescence Properties of Advanced Materials

Multiply Doped Nanostructured Silicate Sol−Gel Thin Films: Spatial Segregation of Dopants, Energy Transfer, and Distance Measurements

Minoofar, Payam N., Dunn, Bruce S., Zink, Jeffrey I.·2005·Journal of the American Chemical Society

Abstract

Physical and chemical strategies that place designed molecules in spatially separated regions of surfactant-templated mesostructured silicate thin films are used to prepare films containing rhodamine 6G (R6G), lanthanide complexes, and both simultaneously. Fluorescence and photoexcitation spectra of R6G in amorphous and structured thin films show that it is located inside the surfactant micelles of structured thin films. A silylated ligand that binds lanthanides condenses to form part of the silica framework and causes the lanthanide to localize in the silica. Luminescence and photoexcitation spectra show that energy transfer from the metal complex to R6G occurs in the films. R6G quenches Tb emission in a concentration-dependent manner. Energy transfer efficiency is calculated using the Tb luminescence lifetime, and this quantity is used to calculate the distance between Tb and R6G with the aid of Forster theory.

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Crossref · 10.1021/ja045185e

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  • Azobenzenes attached to the interiors of inorganic subtract pores templated by surfactant can act as both impellers and gatekeepers.

    “The azobenzenes attached to the interiors of the inorganic subtract pores templated by surfactant [507,508] can act as both impellers and gatekeepers [509,510].”

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Authors
Minoofar, P. N., Dunn, B. S., & Zink, J. I.
Affiliations
University of California, Los Angeles (US)
Venue
Journal of the American Chemical Society
Published
2005-02-03
Volume
127
Issue
8
Pages
2656-2665
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2050118343
Cited by
128
References
44
Citations by year
2025: 1 · 2024: 1 · 2021: 2 · 2020: 2 · 2018: 1 · 2017: 2 · 2016: 1 · 2015: 5 · 2014: 4 · 2013: 6 · 2012: 7
FWCI
10.98
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Chemical Society (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Mesoporous Materials and Catalysis
  • Physical Sciences › Materials Science › Materials Chemistry › Lanthanide and Transition Metal Complexes
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence Properties of Advanced Materials
Keywords
sol-gel thin films, mesostructured silica, rhodamine 6G, lanthanide complexes, terbium, energy transfer, fluorescence resonance energy transfer, distance measurement, surfactant micelles, luminescence quenching, fluorescence quenching, metal-organic hybrid materials

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