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

D. Cassi; R. Fava; M. Manfredi; H. Opyrchal; M. Suszyńska

doi:10.1002/pssb.2221390218

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

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

Research output: Contribution to journal › Article › peer-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 language	English (US)
Pages (from-to)	527-531
Number of pages	5
Journal	physica status solidi (b)
Volume	139
Issue number	2
DOIs	https://doi.org/10.1002/pssb.2221390218
State	Published - Feb 1 1987
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1002/pssb.2221390218

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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.",

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AU - Fava, R.

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AU - Opyrchal, H.

AU - Suszyńska, M.

PY - 1987/2/1

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N2 - 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.

AB - 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.

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

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