Interdiffusion assessment of nanoparticles in fat fractal patterns

Z. W. Chen*, J. K.L. Lai, C. H. Shek, Haydn Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Nanoparticles of polycrystalline Ge have been grown in a freshly cleaved single crystal NaCl (100) substrate, starting from Au/Ge bilayer films prepared using the evaporation method during annealing. The experimental results indicate that fat fractal Ge patterns can be formed in Au/Ge bilayer films by annealing at 100°C for 60 and 70 min. Here, we report in detail interdiffusion assessment of nanoparticles in fat fractal patterns. The scaling exponent (or fractal dimension) of polycrystalline Ge clusters in fat fractal patterns is larger than that of the conventional diffusion-limited aggregation. The formation of fractal patterns and the perplexing scaling behaviour may result from the random successive nucleation and growth mechanism.

Original languageEnglish
Pages (from-to)2726-2729
Number of pages4
JournalJournal of Physics D: Applied Physics
Issue number19
StatePublished - 7 Oct 2004

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