Investigation of Ag nanoparticles fusion process by subsequent vacuum thermal evaporation

This work describes the formation of Ag nanoparticle arrays on unheated surface of the amorphous carbon by a sequential evaporation of several portions by increasing or decreasing their weight. The paper shows the substantial dependence of the particle size and density of their location on the surface on the amount of evaporated Ag. The sequential evaporation of several portions with increasing silver mass observed character of unimodal particle size distribution in the array, and for reducing the weight portions — bimodal. In this paper we appreciated the role of exposure to hot steam on the process of fusion / consolidation formed and has already formed an array of nanoparticles.

[1]  A. Trifonov,et al.  Nucleation and growth of Ag nanoparticles on amorphous carbon surface from vapor phase formed by vacuum evaporation , 2015 .

[2]  A. Trifonov,et al.  Investigation of the early stages of condensation of Ag and Au on the amorphous carbon surface during thermal evaporation under vacuum , 2015 .

[3]  S. Bulyarsky,et al.  Study of silver cluster formation from thin films on inert surface , 2014 .

[4]  Eun-Soo Kim,et al.  Annealing temperature effect on self-assembled Au droplets on Si (111) , 2013, Nanoscale Research Letters.

[5]  N. Khlebtsov.  T-matrix method in plasmonics: An overview , 2013 .

[6]  D. Gromov,et al.  Specific features of the formation of arrays of silver clusters from a thin film on a SiO2 surface , 2013 .

[7]  R. Fowler,et al.  The epidemiology of Hajj-related critical illness: Lessons for deployment of temporary critical care services* , 2012, Critical care medicine.

[8]  Luis M Liz-Marzán,et al.  Design of SERS-encoded, submicron, hollow particles through confined growth of encapsulated metal nanoparticles. , 2009, Journal of the American Chemical Society.

[9]  Hongjun Gao,et al.  Monodisperse Noble-Metal Nanoparticles and Their Surface Enhanced Raman Scattering Properties , 2008 .

[10]  E. Snoeck,et al.  Comparative study of Pt, Au and Ag growth on Fe3O4(001) surface , 2006 .

[11]  A. Vaurès,et al.  Growth of Au clusters on amorphous Al2O3: are small clusters more mobile than atoms? , 2002 .

[12]  L. Kuipers,et al.  DIFFUSION AND AGGREGATION OF SIZE-SELECTED SILVER CLUSTERS ON A GRAPHITE SURFACE , 1996 .

[13]  K. Herwig,et al.  Comparative investigation of the nucleation and growth of fcc-metal particles (Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au) on amorphous carbon and SiO2 substrates during vapor deposition at elevated temperatures , 1996 .

[14]  J. F. Hamilton,et al.  Nucleation and growth of Ag and Pd on amorphous carbon by vapor deposition , 1973 .

[15]  H. Friedrich,et al.  Towards stable catalysts by controlling collective properties of supported metal nanoparticles. , 2013, Nature materials.