08

NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2012, 3 (5), P. 103–110

ABOUT MECHANISM OF INITIAL STAGE OF FORMATION OF NANOSTRUCTURES IN THE CONDITIONS OF SUPER-LOW TEMPERATURES

Alexei Belyaev – Saint Petersburg State Chemical-Pharmaceutical Academy, Saint Petersburg, Russia, heard of the department, professor, doctor of technical sciences, Belyaev@lti-gti.ru, Alexei.Belyaev@pharminnotech.com
Vladimir Rubets – Saint Petersburg State Technological Institute (Technical University), Saint Petersburg, Russia, associate professor, candidate in sciences
Vladimir Antipov – Saint Petersburg State Technological Institute (Technical University), Saint Petersburg, Russia, head of the laboratory
Nikolai Borei – Saint Petersburg State Chemical-Pharmaceutical Academy, Saint Petersburg, Russia, post graduate student

It is reported about results of the study of processes of nucleation at the synthesis of binary compounds A₂B₆ from vapor phase on the substrate cooled by liquid nitrogen. It is presented curves of condensation, electron diffraction patterns, microphotographs of the surface and distribution functions of group of islands – nucleation centers on the earlier stages of growth of nano-sized system. The results are rationalized in frame of model of the type of Stranskoi-Krastanov one, modified for excess chemical energy.

Keywords: nano-particles, cryochemical synthesis, nucleation, Stranskoi-Krastanov model, A₂B₆ compounds, structural studies.

UDC 54.06

PACS 61; 61.46.-w

Download