Aqueous Synthesis and Characterization of TGA-capped CdSe Quantum Dots at Freezing Temperature

Aqueous Synthesis and Characterization of TGA-capped CdSe Quantum Dots at Freezing Temperature

CdSe quantum dots (QDs) have traditionally been synthesized in organic phase and then transferred to aqueous solution by functionalizing their surface with silica, polymers, short-chain thiol ligands, or phospholipid micelles. However, a drastic increase in the hydrodynamic size and biotoxicity of Q...

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Bibliographic Details
Main Authors: Qizhuang Sun, Chaobiao Huang, Tingmei Dong, Shuxian Liu, Shasha Fu
Format: Article
Language:English
Published: MDPI AG 2012-07-01
Series:Molecules
Subjects:
CdSe QDs
thioglycolic acid
freezing temperature
Online Access:http://www.mdpi.com/1420-3049/17/7/8430
Description
Summary:CdSe quantum dots (QDs) have traditionally been synthesized in organic phase and then transferred to aqueous solution by functionalizing their surface with silica, polymers, short-chain thiol ligands, or phospholipid micelles. However, a drastic increase in the hydrodynamic size and biotoxicity of QDs may hinder their biomedical applications. In this paper, the TGA-capped CdSe QDs are directly synthesized in aqueous phase at freezing temperature, and they prove to possess high QY (up to 14%).
ISSN:1420-3049

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