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Formation of Hierarchical InAs Nanoring / GaAs Nanowire Heterostructures
Author(s) -
Paladugu Mohanchand,
Zou Jin,
Guo YaNan,
Zhang Xin,
Joyce Hannah J.,
Gao Qiang,
Tan H. Hoe,
Jagadish Chennupati,
Kim Yong
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200804630
Subject(s) - nanoring , nanowire , nucleation , heterojunction , materials science , transmission electron microscopy , nanotechnology , deposition (geology) , optoelectronics , chemistry , paleontology , organic chemistry , sediment , biology
Rings around the wire : Novel hierarchical heterostructures, assembled by radial deposition of InAs on GaAs nanowires with nonplanar side walls, result in the formation of InAs nanorings. The mechanism of formation of such structures, determined by transmission electron microscopy, involves the preferential nucleation of InAs at concave regions of the GaAs surface by capillarity effects.