An Amphiphilic Approach to Nanocrystal Quantum Dot-Titania Nanocomposites

Melissa A. Petruska; Andrew P. Bartko; Victor I. Klimov

doi:10.1021/ja037539s

An Amphiphilic Approach to Nanocrystal Quantum Dot-Titania Nanocomposites

Melissa A. Petruska, Andrew P. Bartko, Victor I. Klimov

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

71 Citations (Scopus)

Abstract

The addition of octylamine-modified poly(acrylic acid) to nanocrystal quantum dots (NQDs) results in robust, alcohol-soluble nanoparticles that can be readily incorporated into titania matrices without large changes in photoluminescence quantum yields. This approach relies on the amphiphilic nature of the polymer to create an NQD-polymer complex in which the alkyl chains interact with the hydrophobic part of the NQD, leaving the polar carboxylic acid groups on the periphery. This procedure is applicable to hydrophobically capped NQDs of a variety of shapes and compositions, making it a truly generalized route to nanocrystal-titania nanocomposites.

Original language	English
Pages (from-to)	714-715
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	126
Issue number	3
DOIs	https://doi.org/10.1021/ja037539s
Publication status	Published - Jan 28 2004

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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AB - The addition of octylamine-modified poly(acrylic acid) to nanocrystal quantum dots (NQDs) results in robust, alcohol-soluble nanoparticles that can be readily incorporated into titania matrices without large changes in photoluminescence quantum yields. This approach relies on the amphiphilic nature of the polymer to create an NQD-polymer complex in which the alkyl chains interact with the hydrophobic part of the NQD, leaving the polar carboxylic acid groups on the periphery. This procedure is applicable to hydrophobically capped NQDs of a variety of shapes and compositions, making it a truly generalized route to nanocrystal-titania nanocomposites.

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An Amphiphilic Approach to Nanocrystal Quantum Dot-Titania Nanocomposites

Abstract

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