title: The formation mechanism of binary semiconductor nanomaterials: shared by single-source and dual-source precursor approaches.
abstract: One thing in common: The formation of binary colloidal semiconductor nanocrystals from single- (M(EEPPh2 )n ) and dual-source precursors (metal carboxylates M(OOCR)n and phosphine chalcogenides such as E=PHPh2 ) is found to proceed through a common mechanism. For CdSe as a model system (31) P NMR spectroscopy and DFT calculations support a reaction mechanism which includes numerous metathesis equilibriums and Se exchange reactions.
authors.affiliation: National Research Council of Canada, Ottawa, ON, K1A 0R6 (Canada). kui.yu@nrc-cnrc.gc.ca.
authors.forename: Kui
authors.initials: K
authors.lastname: Yu
authors.forename: Xiangyang
authors.initials: X
authors.lastname: Liu
authors.forename: Qun
authors.initials: Q
authors.lastname: Zeng
authors.forename: Mingli
authors.initials: M
authors.lastname: Yang
authors.forename: Jianying
authors.initials: J
authors.lastname: Ouyang
authors.forename: Xinqin
authors.initials: X
authors.lastname: Wang
authors.forename: Ye
authors.initials: Y
authors.lastname: Tao
keywords: metal-ligand interaction; molecular modeling; nanocrystal formation mechanisms; phosphines; semiconductor quantum dots