Self-organization of PbTe and SnTe nanostructures on the van der Walls GaSe(0001) surface

Autor:	E. I. Slyn’ko, V. N. Vodop’yanov, O. S. Lytvyn, Zakhar D. Kovalyuk, A. P. Bakhtinov
Rok vydání:	2007
Předmět:	Materials science Physics and Astronomy (miscellaneous) Condensed matter physics Chalcogenide Van der Waals surface Nucleation chemistry.chemical_element Nanotechnology Lead telluride Tin telluride Crystal chemistry.chemical_compound symbols.namesake chemistry symbols van der Waals force Tin
Zdroj:	Technical Physics Letters. 33:86-90
ISSN:	1090-6533 1063-7850
DOI:	10.1134/s1063785007010245
Popis:	The formation of nanodimensional defects on the van der Waals (0001) surface of a gallium selenide (GaSe) layered crystal and the growth of lead telluride (PbTe) and tin telluride (SnTe) nanostructures by deposition on this surface from the vapor phase has been studied. It is established that linear defects of various shapes and nanodimensional cavities (nanocavities) are formed on the van der Waals surface of a GaSe crystal as a result of plastic deformation. The nucleation and growth of PbTe and SnTe nanostructures on the flat van der Waals surface and in the nanocavities proceeds according to different mechanisms. It is demonstrated that selective growth of lead and tin chalcogenide nanostructures is possible on the van der Waals surfaces with nanocavities formed as a result of self-organization in the uppermost (less than 1 nm thick) layer of a GaSe crystal.
Databáze:	OpenAIRE
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