Abstract
Results of in situ studies into the coagulation of gold nanoparticles in amorphous carbon and silicon dioxide films exposed to an electron beam are presented. Special attention is paid to the final stage of coagulation (nanoparticle merging). The results clearly demonstrate the possibility of modifying the structure in a local film region by exposing it to an electron beam. Binary interparticle collisions are prevalent in the studied films. It is found that the rate of nanoparticle aggregation depends on the difference in their diameters and the orientation relationship at the moment of contact between the merging nanoparticles. It is also found that some nanoparticles are enlarged much in the same way as is done under recrystallization, i.e., via the migration of nanocrystal boundaries.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Z. L. Wang, “Transmission electron microscopy of shape-controlled nanocrystals and their assemblies,” J. Phys. Chem. B 104, 1153–1175 (2000).
P. Buffat and J.-P. Borel, “Size effect on the melting temperature of gold particles,” J. Phys. Rev. A 13, 2287–2298 1976.
V. V. Klimov, Nanoplasmonics (Fizmatlit, Moscow, 2009) [in Russian].
A. L. Buchachenko, “Nanochemistry is the straight way to high technologies of the new century,” Usp. Khim. 72(5), 419–437 (2003).
A. D. Pomogailo, A. S. Rozenberg, and I. E. Uflyand, Metallic Nanoparticles in Polymers (Khimiya, Moscow, 2000) [in Russian].
R. A. Andrievskii, “Thermal stability of nanomaterials,” Usp. Khim. 71(10), 967–981 (2002).
V. A. Galkin, Smolukhovskii Equation (Fizmatlit, Moscow, 2001) [in Russian].
A. A. Timofeev, M. I. Alymov, and A. G. Gnedovets, “Formation of an ensemble of gold clusters in a thin amorphous carbon film by electron beam,” Nanotech. Russ. 7(7–8), 401 (2012).
V. M. Voloshchuk and Yu. S. Sedunov, Coagulation Processes in Dispersed Systems (Gidrometeoizdat, Leningrad, 1975) [in Russian].
A. V. Zenkevich, Yu. Yu. Lebedinskii, A. A. Timofeev, N. V. Nevolin, D. A. Antonov, D. O. Filatov, and G. A. Maksimov, “Forming of SiO2:Au superthin nanocomposite structures by means of pulse laser deposition,” Perspekt. Mater. 4, 5–17 (2008).
I. F. Efremov, Periodical Colloidal Structures (Khimiya, Leningrad, 1971) [in Russian].
B. V. Deryagin, V. D. Samygin, and A. K. Lifshits, “Minerals particles flocculation under turbulence,” Kolloidn. Zh. 26(2), 179–185 (1964).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © M.I. Alymov, A.A. Timofeev, A.G. Gnedovets, 2013, published in Rossiiskie Nanotekhnologii, 2013, Vol. 8, Nos. 11–12.
Rights and permissions
About this article
Cite this article
Alymov, M.I., Timofeev, A.A. & Gnedovets, A.G. Coagulation of gold nanoparticles in thin amorphous films under irradiation with a fast electron beam. Nanotechnol Russia 8, 727–736 (2013). https://doi.org/10.1134/S1995078013060037
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1995078013060037