Journal Article

FZJ-2015-02606

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Polarity-Driven Polytypic Branching in Cu-Based Quaternary Chalcogenide Nanostructures

Zamani, R. R. (Corresponding Author) ; Ibáñez, M. ; Luysberg, M.FZJ* ; García-Castelló, N. ; Houben, L.FZJ* ; Prades, J. D. ; Grillo, V. ; Dunin-Borkowski, R.FZJ* ; Morante, J. R. ; Cabot, A. ; Arbiol, J.

2014
Soc. Washington, DC

This record in other databases:      

Please use a persistent id in citations: doi:10.1021/nn405747h

Abstract: An appropriate way of realizing property nanoengineering in complex quaternary chalcogenide nanocrystals is presented for Cu2CdxSnSey(CCTSe) polypods. The pivotal role of the polarity in determining morphology, growth, and the polytypic branching mechanism is demonstrated. Polarity is considered to be responsible for the formation of an initial seed that takes the form of a tetrahedron with four cation-polar facets. Size and shape confinement of the intermediate pentatetrahedral seed is also attributed to polarity, as their external facets are anion-polar. The final polypod extensions also branch out as a result of a cation-polarity-driven mechanism. Aberration-corrected scanning transmission electron microscopy is used to identify stannite cation ordering, while ab initio studies are used to show the influence of cation ordering/distortion, stoichiometry, and polytypic structural change on the electronic band structure.

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Contributing Institute(s):

1. Mikrostrukturforschung (PGI-5)

Research Program(s):

1. 42G - Peter Grünberg-Centre (PG-C) (POF2-42G41) (POF2-42G41)

Appears in the scientific report 2014

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 10 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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