The Effect of Various Silicate-glass Matrixes on Gold-nanoparticle Formation

0474055 - ÚJF 2018 RIV CZ eng J - Článek v odborném periodiku
Švecová, B. - Vindová, P. - Staněk, S. - Vytykačová, S. - Macková, Anna - Malinský, Petr - Mikšová, Romana - Janeček, M. - Pešička, J. - Špirková, J.
The Effect of Various Silicate-glass Matrixes on Gold-nanoparticle Formation.
Ceramics - Silikáty. Roč. 61, č. 1 (2017), s. 52-58. ISSN 0862-5468. E-ISSN 1804-5847
Grant CEP: GA ČR GB14-36566G; GA ČR GA15-01602S; GA MŠMT LM2015056
Institucionální podpora: RVO:61389005
Klíčová slova: glasses * nanoparticles * transmission electron microscopy * ion implantation
Obor OECD: Nano-materials (production and properties)
Impakt faktor: 0.680, rok: 2017

Ion implantation file with energy of 1.7 MeV and afluelice of1 x 10(16) ions.cm(-2) alongwith post-implantation annealing were used to synthesize metal nanoparticles in various types of silicate glasses. The objective of the work was the investigation of the effect of the host glass matrix on the principle properties of the nanoparticles. The prepared samples were characterized in terms of their chemical composition and the nucleation of gold nanoparticles. The largest nanoparticles having a radius of 1 - 25 mu and an irregular shape were detected in the glass BK7 containing boron trioxide in its structure. On the other hand, small nanoparticles (1 - 5 nm) with a spherical shape were found in glass with a structure similar to silica. The shape, size and distribution of the nanoparticles are strongly influenced by the divergence of the annealing temperature from the transformation temperature of the particular glass.
Trvalý link: http://hdl.handle.net/11104/0271152