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Growth of tin oxide nanocrystals
Author(s) -
Zanotti L.,
Zha M.,
Calestani D.,
Comini E.,
Sberveglieri G.
Publication year - 2005
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200410462
Subject(s) - tin , nucleation , nanocrystal , tin oxide , nanotechnology , nanowire , materials science , tube (container) , chemical engineering , oxide , chemistry , metallurgy , composite material , organic chemistry , engineering
Functional oxides are presently much investigated as regards not only their basic properties, but also their actual and potential applications. Tin oxides appear particularly interesting when grown in nanowire shape (SnO 2 ‐NW) because of their electronic‐ and sensor‐device applications. In this paper the results of a systematic study on nucleation and growth of SnO 2 ‐NWs, when an open‐tube vapor‐transport technique is employed, are reported and discussed. The vapor transport conditions have been investigated in greater detail and for the first time a growth model is proposed. Functional tests at different temperatures and gaseous compositions have proved that the SnO 2 ‐NW are suitable for the preparation of highly‐sensitive and stable gas sensors. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)