Work

One-Pot Synthesis, Encapsulation, and Solubilization of Size-Tuned Quantum Dots with Amphiphilic Multidentate Ligands

Year: 2008

Type: article

Abstract: We report one-pot synthesis, encapsulation, and solubilization of high-quality quantum dots (QDs) based on the use of amphiphilic and multidentate polymer ligands. In this "all-in-one" procedure, the resulting QDs are first capped by the multidentate ligand and are then spontaneously encapsulated and solubilized by a second layer of the same multidentate polymer upon exposure to water. In addition to providing better control of nanocrystal nucleation and growth kinetics (including resistance to Ostwald ripening), this procedure allows for in situ growth of an inorganic passivating shell on the nanocrystal core, enabling one-pot synthesis of both type-I and type-II core-shell QDs with tunable light emission from visible to near-infrared wavelengths.

Source: Journal of the American Chemical Society

DOI: 10.1021/ja804755q

Authors: Brad A. Kairdolf, Andrew M. Smith, Shuming Nie

Institutions: Georgia Institute of Technology, Emory University

Language: English

Topic: Quantum Dots Synthesis And Properties

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green