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

doi:10.1016/j.cplett.2005.12.017

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

Department of Chemistry

Research output: Contribution to journal › Article

41 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 language	English
Pages (from-to)	444-449
Number of pages	6
Journal	Chemical Physics Letters
Volume	419
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2005.12.017
Publication status	Published - 2006 Feb 26

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All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

Cite this

Bhongale, C. J., Chang, C. W., Diau, E. W. G., Hsu, C. S., Dong, Y., & Tang, B. Z. (2006). Formation of nanostructures of hexaphenylsilole with enhanced color-tunable emissions. Chemical Physics Letters, 419(4-6), 444-449. https://doi.org/10.1016/j.cplett.2005.12.017

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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.",

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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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10.1016/j.cplett.2005.12.017