Mechanistic study of the role of primary amines in precursor conversions to semiconductor nanocrystals at low temperature

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DOIResolve DOI: http://doi.org/10.1002/anie.201403714
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TypeArticle
Journal titleAngewandte Chemie - International Edition
ISSN1433-7851
Volume53
Issue27
Pages68986904; # of pages: 7
SubjectAmines; Nanocrystals; Phosphorus compounds; Colloidal quantum dots; Colloidal semiconductor nanocrystals; phosphines; Precursor conversion; Reaction temperature; Secondary phosphines; Semiconductor nanocrystals; Semiconductor particles; Semiconductor quantum dots
AbstractPrimary alkyl amines (RNH2) have been empirically used to engineer various colloidal semiconductor nanocrystals (NCs). Here, we present a general mechanism in which the amine acts as a hydrogen/proton donor in the precursor conversion to nanocrystals at low temperature, which was assisted by the presence of a secondary phosphine. Our findings introduce the strategy of using a secondary phosphine together with a primary amine as new routes to prepare high-quality NCs at low reaction temperatures but with high particle yields and reproducibility and thus, potentially, low production costs.
Publication date
LanguageEnglish
AffiliationSecurity and Disruptive Technologies; Human Health Therapeutics; Information and Communication Technologies; National Research Council Canada
Peer reviewedYes
NPARC number21272870
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Record identifier8cc47818-fe44-4ec0-beb7-e501962bdea3
Record created2014-12-03
Record modified2016-05-09
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