Formation of nanostructures of hexaphenylsilole with enhanced color-tunable emissions

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


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
Issue number4-6
StatePublished - 26 Feb 2006

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