Chemical, structural, and quantitative analysis of the ligand shells of colloidal quantum dots

Adam J. Morris-Cohen; Michał Malicki; Mark D. Peterson; John W.J. Slavin; Emily A. Weiss

doi:10.1021/cm302108j

Chemical, structural, and quantitative analysis of the ligand shells of colloidal quantum dots

Adam J. Morris-Cohen, Michał Malicki, Mark D. Peterson, John W.J. Slavin, Emily A. Weiss

Northwestern University

Research output: Contribution to journal › Review article › peer-review

143 Citations (Scopus)

Abstract

This review outlines the set of technical approaches to answering three major questions about the surface chemistry of colloidal semiconductor quantum dots (QDs): (i) What is the chemical structure of the ligands on the surface of the QD? (ii) How many of each type of ligand are on the surface of the QD? (iii) What is the intermolecular structure (geometry) of the ligands on the surface of the QD? Each section addresses the accessability of the relevant techniques - which include 1D and 2D NMR, vibrational and electronic absorption and transient absorption spectroscopies, and various elemental analyses - and their sensitivity and applicability to the specified observable of interest.

Original language	English
Pages (from-to)	1155-1165
Number of pages	11
Journal	Chemistry of Materials
Volume	25
Issue number	8
DOIs	https://doi.org/10.1021/cm302108j
Publication status	Published - Apr 23 2013

Keywords

NMR
elemental analysis
quantum dot
transient absorption spectroscopy

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

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AU - Malicki, Michał

AU - Peterson, Mark D.

AU - Slavin, John W.J.

AU - Weiss, Emily A.

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AB - This review outlines the set of technical approaches to answering three major questions about the surface chemistry of colloidal semiconductor quantum dots (QDs): (i) What is the chemical structure of the ligands on the surface of the QD? (ii) How many of each type of ligand are on the surface of the QD? (iii) What is the intermolecular structure (geometry) of the ligands on the surface of the QD? Each section addresses the accessability of the relevant techniques - which include 1D and 2D NMR, vibrational and electronic absorption and transient absorption spectroscopies, and various elemental analyses - and their sensitivity and applicability to the specified observable of interest.

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KW - elemental analysis

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KW - transient absorption spectroscopy

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Chemical, structural, and quantitative analysis of the ligand shells of colloidal quantum dots

Abstract

Keywords

ASJC Scopus subject areas

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