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Remarkable water-soluble ZnO nanocrystals: from ‘click’ functionalization to a supramolecular aggregation enhanced emission phenomenon

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Abstract

The preparation of ZnO nanocrystals with enhanced stability and photoluminescence intensity in an aqueous environment is a challenging task. We report on an one-pot two-step organometallic approach for the synthesis of processable alkyne-functionalized quantum-sized ZnO crystals and their efficient phase transfer protocol from an organic solvent to an aqueous environment involving the surface modification by the Cu-mediated azide–alkyne cycloaddition. Remarkably, the water-soluble NCs not only maintain the photoluminescence properties after the post-synthetic surface modification, but also exhibit the unprecedented (for II–VI semiconductor nanocrystals) aggregation enhanced emission phenomenon.

Graphical abstract: Remarkable water-soluble ZnO nanocrystals: from ‘click’ functionalization to a supramolecular aggregation enhanced emission phenomenon

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Publication details

The article was received on 14 Dec 2017, accepted on 19 Mar 2018 and first published on 04 Apr 2018


Article type: Research Article
DOI: 10.1039/C7QM00586E
Citation: Mater. Chem. Front., 2018, Advance Article
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    Remarkable water-soluble ZnO nanocrystals: from ‘click’ functionalization to a supramolecular aggregation enhanced emission phenomenon

    A. Grala, M. Wolska-Pietkiewicz, Z. Wróbel, T. Ratajczyk, J. Kuncewicz and J. Lewiński, Mater. Chem. Front., 2018, Advance Article , DOI: 10.1039/C7QM00586E

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