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Design and Synthesis of Colloidal Nanocrystal Heterostructures with Tetrapod Morphology
Author(s) -
Xie Renguo,
Kolb Ute,
Basché Thomas
Publication year - 2006
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200600298
Subject(s) - tetrapod (structure) , heterojunction , oleylamine , nanocrystal , materials science , colloid , morphology (biology) , nanotechnology , optoelectronics , chemical engineering , biology , paleontology , engineering
Pod people: Tetrapod‐shaped ZnTe/CdSe and ZnTe/CdS heterostructure nanocrystals (see image, left and right, respectively) are prepared by a novel synthetic route. The tetrapod arms are grown on the ZnTe cores by alternating injections of Cd and Se/S precursors at intermediate temperatures in the presence of oleylamine ligands. The formation of the tetrapod heterostructures proceeds from slightly anisotropic core/shell to pyramidal to tetrapod‐shaped heterostructures.
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