Spectral study of colloidal photonic crystals

K. Dou, Z. Xu, X. J. Wang, Y. Chen, T. Collins

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

Abstract

The spectroscopic and microscopic investigation in polystyrene photonic crystals was performed. Colloidal crystalline layers were deposited on glass and quartz by vertical evaporation deposition. Emission, excitation and up-converted emission were studied on both polystyrene powders and polystyrene photonic crystals. The results indicated that spectral features were strongly dependent on the particle properties of size, shape, and arrangement. Blue emission at 420 nm was also found by using a 532-nm excitation due to multiphoton process and a dynamic model was proposed to explain the mechanism of the up-converted emission.

Original languageEnglish
Pages (from-to)476-480
Number of pages5
JournalJournal of Luminescence
Volume102-103
Issue numberSPEC
DOIs
StatePublished - May 2003
EventProceedings of the 2002 International Conference on Luminescence - Budapest, Hungary
Duration: Aug 24 2002Aug 29 2002

Keywords

  • Excited-state dynamics
  • Nanocrystals
  • Photonic crystal
  • Quantum-structured materials

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