Mechanistic Insights into the Formation of InP Quantum Dots

The molecular mechanism of InP colloidal quantum dot (QD) syntheses was investigated by NMR spectroscopy. Unlike methods for monodisperse PbSe and CdSe, existing InP syntheses result in total depletion of molecular phosphorous species following nucleation, so QD growth is due exclusively to non-mole...

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Main Authors: Allen, Peter M., Walker, Brian J., Bawendi, Moungi G.
Other Authors: Massachusetts Institute of Technology. Department of Chemistry
Format: Article
Language:en_US
Published: Wiley Blackwell 2013
Online Access:http://hdl.handle.net/1721.1/81883
https://orcid.org/0000-0003-2220-4365
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author Allen, Peter M.
Walker, Brian J.
Bawendi, Moungi G.
author2 Massachusetts Institute of Technology. Department of Chemistry
author_facet Massachusetts Institute of Technology. Department of Chemistry
Allen, Peter M.
Walker, Brian J.
Bawendi, Moungi G.
author_sort Allen, Peter M.
collection MIT
description The molecular mechanism of InP colloidal quantum dot (QD) syntheses was investigated by NMR spectroscopy. Unlike methods for monodisperse PbSe and CdSe, existing InP syntheses result in total depletion of molecular phosphorous species following nucleation, so QD growth is due exclusively to non-molecular ripening. Amines inhibit precursor depletion by solvation (see picture), contrary to previous reports.
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spelling mit-1721.1/818832022-09-29T13:50:51Z Mechanistic Insights into the Formation of InP Quantum Dots Allen, Peter M. Walker, Brian J. Bawendi, Moungi G. Massachusetts Institute of Technology. Department of Chemistry Allen, Peter M. Walker, Brian J. Bawendi, Moungi G. The molecular mechanism of InP colloidal quantum dot (QD) syntheses was investigated by NMR spectroscopy. Unlike methods for monodisperse PbSe and CdSe, existing InP syntheses result in total depletion of molecular phosphorous species following nucleation, so QD growth is due exclusively to non-molecular ripening. Amines inhibit precursor depletion by solvation (see picture), contrary to previous reports. MIT-Harvard Center for Cancer Nanotechnology Excellence (National Institutes of Health (U.S.) 1U54-CA119349) United States. Army Research Office (ISN W911NF-07-D-0004) Massachusetts Institute of Technology. Dept. of Chemistry Instrumentation Facility (CHE-980806) Massachusetts Institute of Technology. Dept. of Chemistry Instrumentation Facility (DBI-9729592) National Science Foundation (U.S.). Graduate Research Fellowship Program 2013-10-30T17:01:07Z 2013-10-30T17:01:07Z 2009-12 Article http://purl.org/eprint/type/JournalArticle 14337851 1521-3773 http://hdl.handle.net/1721.1/81883 Allen, Peter M., Brian J. Walker, and Moungi G. Bawendi. “Mechanistic Insights into the Formation of InP Quantum Dots.” Angewandte Chemie International Edition 49, no. 4 (January 18, 2010): 760-762. https://orcid.org/0000-0003-2220-4365 en_US http://dx.doi.org/10.1002/anie.200905632 Angewandte Chemie International Edition Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Wiley Blackwell PMC
spellingShingle Allen, Peter M.
Walker, Brian J.
Bawendi, Moungi G.
Mechanistic Insights into the Formation of InP Quantum Dots
title Mechanistic Insights into the Formation of InP Quantum Dots
title_full Mechanistic Insights into the Formation of InP Quantum Dots
title_fullStr Mechanistic Insights into the Formation of InP Quantum Dots
title_full_unstemmed Mechanistic Insights into the Formation of InP Quantum Dots
title_short Mechanistic Insights into the Formation of InP Quantum Dots
title_sort mechanistic insights into the formation of inp quantum dots
url http://hdl.handle.net/1721.1/81883
https://orcid.org/0000-0003-2220-4365
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