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Controlled Integration of Nanocrystals in Inverted Hexagonal Nano‐Pits at the Surface of Light‐Emitting Heterostructures (Adv. Mater. 5/2008)
Author(s) -
de Sousa Pereira S. M.,
Martins M. A.,
Trindade T.,
Watson I. M.,
Zhu D.,
Humphreys C. J.
Publication year - 2008
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.200890016
Subject(s) - materials science , nanocrystal , nanoengineering , heterojunction , hexagonal crystal system , nanotechnology , nano , gallium nitride , optoelectronics , gallium , crystallography , composite material , metallurgy , layer (electronics) , chemistry
Hexagonal inverted nanopyramids on gallium‐nitride‐based multiple quantum wells are exploited to confine gold nanocrystals (NCs) at the surface of such light‐emitting heterostructures. The number of NCs incorporated in each pit can be controlled by nanoengineering either the NCs' size or the pit size. Capillarity effects can be used to drive the formation of well‐defined assemblies of Au NCs within each pit, as reported by Sérgio Pereira and co‐workers on p. 1038.