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.
PACS 61; 61.46.-w