Fractal and Percolative Features of Aggregation Processes in NaCl:Eu2+ System Detected by Time‐Resolved Spectroscopy

D. Cassi, R. Fava, M. Manfredi, Halina Opyrchal, M. Suszyńska

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Time resolved spectroscopy of Eu2+ aggregates in the NaCl system — at different stages of the aggregation process — shows a non‐exponential behaviour of time decay signals that is interpreted in terms of excitation migration and up‐conversion processes in a fractal geometry. Following this model, the spectral dimension of such aggregates is obtained from the time decay profiles. The analysis of experimental results suggests a model (fluctuation‐percolation triggered aggregation, FPTA) for the aggregation process.

Original languageEnglish (US)
Pages (from-to)527-531
Number of pages5
Journalphysica status solidi (b)
Volume139
Issue number2
DOIs
StatePublished - Jan 1 1987
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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