CdTe Nanocrystals Capped with a Tetrazolyl Analogue of Thioglycolic Acid: Aqueous Synthesis, Characterization, and Metal-Assisted Assembly

A novel ligand, 5-mercaptomethyltetrazole, is applied to the direct colloidal synthesis of highly luminescent (quantum yield of up to 60%) water-soluble CdTe nanocrystals. In the synthesis the 5-mercaptomethyltetrazole behaves analogously to the widely used thioglycolic acid, providing the additiona...

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Bibliographic Details
Published inACS nano Vol. 4; no. 7; pp. 4090 - 4096
Main Authors Lesnyak, Vladimir, Voitekhovich, Sergei V., Gaponik, Pavel N., Gaponik, Nikolai, Eychmüller, Alexander
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 27.07.2010
Subjects
CdTe nanocrystals
5-mercaptomethyltetrazole
aqueous synthesis
reversible 3D assembly
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Summary:A novel ligand, 5-mercaptomethyltetrazole, is applied to the direct colloidal synthesis of highly luminescent (quantum yield of up to 60%) water-soluble CdTe nanocrystals. In the synthesis the 5-mercaptomethyltetrazole behaves analogously to the widely used thioglycolic acid, providing the additional advantage of solubility of the resulting nanocrystals in methanol. Moreover, the 5-mercaptomethyltetrazole-capped nanocrystals possess the unique ability to reversibly form fine 3D networks (hydrogels) upon the addition of metal salts.
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ISSN:1936-0851
1936-086X
DOI:10.1021/nn100563c