Formation of nanostructures of hexaphenylsilole with enhanced color-tunable emissions

Chetan Jagdish Bhongale, Chih-Wei Chang, Eric Wei Guang Diau, Chain Shu Hsu, Yongqiang Dong, Ben Zhong Tang

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Nanostructures of 1,1,2,3,4,5-hexaphenylsilole (HPS) of various types were obtained on simple reprecipitation with THF as solvent and water as non-solvent. The formation and evolution of these nanostructures were monitored with scanning electron microscopy. Using picosecond time-correlated single-photon counting, we observed enhanced emission and fluorescence lifetimes at volume fractions 70-90% of added water. We report the first enhanced color-tunable emissions of a conjugated organic compound (HPS) due to the formation of nanoflowers, nanoglobules and microglobules, and provide time scales for those nanostructures and the corresponding intermolecular interactions in the aggregates.

Original languageEnglish
Pages (from-to)444-449
Number of pages6
JournalChemical Physics Letters
Volume419
Issue number4-6
DOIs
Publication statusPublished - 2006 Feb 26

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Nanostructures
Color
color
organic compounds
Nanoflowers
water
counting
Water
Organic compounds
life (durability)
fluorescence
scanning electron microscopy
Volume fraction
photons
Photons
Fluorescence
Scanning electron microscopy
interactions
1,2,3,4,5-hexaphenylsilole

All Science Journal Classification (ASJC) codes

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

Cite this

Bhongale, Chetan Jagdish ; Chang, Chih-Wei ; Diau, Eric Wei Guang ; Hsu, Chain Shu ; Dong, Yongqiang ; Tang, Ben Zhong. / Formation of nanostructures of hexaphenylsilole with enhanced color-tunable emissions. In: Chemical Physics Letters. 2006 ; Vol. 419, No. 4-6. pp. 444-449.
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Formation of nanostructures of hexaphenylsilole with enhanced color-tunable emissions. / Bhongale, Chetan Jagdish; Chang, Chih-Wei; Diau, Eric Wei Guang; Hsu, Chain Shu; Dong, Yongqiang; Tang, Ben Zhong.

In: Chemical Physics Letters, Vol. 419, No. 4-6, 26.02.2006, p. 444-449.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Bhongale, Chetan Jagdish

AU - Chang, Chih-Wei

AU - Diau, Eric Wei Guang

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AU - Dong, Yongqiang

AU - Tang, Ben Zhong

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AB - Nanostructures of 1,1,2,3,4,5-hexaphenylsilole (HPS) of various types were obtained on simple reprecipitation with THF as solvent and water as non-solvent. The formation and evolution of these nanostructures were monitored with scanning electron microscopy. Using picosecond time-correlated single-photon counting, we observed enhanced emission and fluorescence lifetimes at volume fractions 70-90% of added water. We report the first enhanced color-tunable emissions of a conjugated organic compound (HPS) due to the formation of nanoflowers, nanoglobules and microglobules, and provide time scales for those nanostructures and the corresponding intermolecular interactions in the aggregates.

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