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Au‐Induced Encapsulation of Ge Nanowires in Protective C Shells
Author(s) -
Sutter E.,
Sutter P.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200600624
Subject(s) - nanowire , materials science , annealing (glass) , transmission electron microscopy , nanotechnology , atmospheric temperature range , encapsulation (networking) , chemical engineering , composite material , computer network , physics , meteorology , computer science , engineering
In situ annealing experiments (in the temperature range between room temperature and 400 °C) in a transmission electron microscope show that Ge nanowires can be encapsulated in graphitic C shells in the presence of C (see figure) if the wire surface is decorated with small amounts of Au. The C shells are demonstrated to provide a protective barrier against nanowire oxidation even after prolonged exposure to ambient conditions.