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Shape‐Controlled Synthesis of CdSe Tetrapods Using Cationic Surfactant Ligands
Author(s) -
Asokan Subashini,
Krueger Karl M.,
Colvin Vicki L.,
Wong Michael S.
Publication year - 2007
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.200700120
Subject(s) - nanoparticle , materials science , quantum dot , selectivity , nanotechnology , dispersity , nanocrystal , precipitation , cadmium selenide , cationic polymerization , selenide , solvent , colloid , chemical engineering , chemistry , organic chemistry , selenium , polymer chemistry , engineering , physics , meteorology , metallurgy , catalysis
Keeping in shape : Quaternary alkylammonium compounds promote the formation of faceted quantum dots. Their use in hot‐injection synthesis chemistry provides a new means to form uniform CdSe tetrapods without a selective precipitation step (see picture; TOPSe: trioctylphosphine selenide), and introduces the prospect of nanoparticle shape control through ligand–nanoparticle charge interactions.