Relating the rate of growth of metal nanoparticles to cluster size distribution in electroless deposition
Type
ArticleKAUST Department
Material Science and Engineering ProgramPhysical Science and Engineering (PSE) Division
Date
2019Permanent link to this record
http://hdl.handle.net/10754/628482
Metadata
Show full item recordAbstract
Electroless deposition on patterned silicon substrates enables the formation of metal nanomaterials with tight control over their size and shape. In the technique, metal ions are transported by diffusion from a solution to the active sites of an autocatalytic substrate where they are reduced as metals upon contact. Here, using diffusion limited aggregation models and numerical simulations, we derived relationships that correlate the cluster size distribution to the total mass of deposited particles. We found that the ratio ξ between the rates of growth of two different metals Image ID:c8na00040a-t1.gif depends on the ratio γ between the rates of growth of clusters formed by those metals Image ID:c8na00040a-t2.gif through the linearity law ξ = 14(γ − 1). We then validated the model using experiments. Different from other methods, the model derives k using as input the geometry of metal nanoparticle clusters, decoded by SEM or AFM images of samples, and a known reference.Citation
Iatalese M, Coluccio ML, Onesto V, Amato F, Di Fabrizio E, et al. (2018) Relating the rate of growth of metal nanoparticles to cluster size distribution in electroless deposition. Nanoscale Advances. Available: http://dx.doi.org/10.1039/c8na00040a.Publisher
Royal Society of Chemistry (RSC)Journal
Nanoscale AdvancesAdditional Links
http://pubs.rsc.org/en/content/articlehtml/2018/na/c8na00040aae974a485f413a2113503eed53cd6c53
10.1039/c8na00040a
Scopus Count
Except where otherwise noted, this item's license is described as This Open Access Article is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported Licence