Semiconductor Nanocrystals Hybridized with Functional Ligands: New Composite Materials with Tunable Properties

Abstract

Semiconductor nanocrystals hybridized with functional ligands represent an important new class of composite nanomaterials. The development of these new nanoscale building blocks has intensified over the past few years and offer significant advantages in a wide array of applications. Functional ligands allow for incorporation of nanocrystals into areas where their unique photophysics can be exploited. Energy and charge transfer between the ligands and the nanocrystal also result in enhanced physical properties that can be tuned by the choice of ligand architecture. Here, progress in the development and applications involving this new class of composite materials will be discussed.

Influence of single dye molecules on temperature and time dependent optical properties of CdSe/ZnS quantum dots: Ensemble and single nanoassembly detection

“…This results from their versatile and controllable geometric features with closely related structure-dependent properties [1][2][3][4][5]. Much attention has been paid to the investigation of physicochemical and optical properties of nanostructures based on colloidal semiconductor quantum dots (QDs) [6,7] being used in biomedicine [8,9] or as components of optoelectronic nanodevices [10], chemical or biochemical nanosensors, energy or information storage, and nanocatalysis [11,12].…”

Size controlled synthesis of monodisperse PbTe quantum dots: using oleylamine as the capping ligand

“…This offers a convenient and alternative way to further investigate the fundamental synthetic mechanism and formation process of PbTe QDs. (2) The hydrophobic PbTe QDs synthesized can easily be changed to various kinds of ligand 26 capped PbTe QDs due to OLA's surface ligand dynamics that makes OLA a good leaving ligand. 27 This makes it possible to obtain bio-conjugated PbTe QDs which otherwise cannot be directly synthesized.…”

Selenium quantum dots: Preparation, structure, and properties

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