PACS 71.24.+q, 78.55.Ap, 78.66.Db, 78.66.Jg, 78.66Vs

Multimodal size distribution of Si nanoclusters in SiO2
as manifestation of interaction in the space of sizes

I. V. Blonskiy, B. I. Lev
Institute of Physics, NAS Ukraine, 46 prospekt Nauki, Kyiv, 252028, Ukraine

M. Ya. Valakh
Institute of Semiconductor Physics, NAS Ukraine, 45 prospekt Nauki, Kyiv, 252028, Ukraine

Abstract. This paper summarizes the results of experimental studies revealing a multimodal character of the function of size distribution of Si nanoclusters in light-emitting SiO2:Si structures. To explain the nature of this multimodality, a “liquid” approach to the description of the coalescence stage based on taking into account the correlation effects caused by particle-particle interactions in the space of sizes is proposed. This approach is justified by a high concentration of solutions where the nuclei of the new phase are described by a multimodal function of size distribution.

Keywords: nanoclusters; size distribution function; interaction in the space of sizes; silicon-based light-emitting devices.

Paper received 02.10.98; revised manuscript received 26.10.98; accepted for publication 28.10.98.

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