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Issue 24, 2013
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Ternary and quaternary metal chalcogenide nanocrystals: synthesis, properties and applications

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Abstract

We review the field of multinary metal chalcogenide nanocrystals, which has gained strongly increasing interest in the quest for novel narrow band gap semiconductors. Small (2–4 nm) CuInS2 and CuInSe2 nanocrystals, for example, exhibit size dependent luminescence in the visible and near infrared range. Their quantum yield can exceed 50% after growth of a ZnS shell, which makes them appealing emitters for lighting, displaying and biological imaging applications. Cu2ZnSnS4 (CZTS) nanocrystals, on the other hand, can be used as solution processed absorbing materials in thin film solar cells showing high power conversion efficiencies (currently around 8–10%). These examples illustrate that multinary metal chalcogenide nanocrystals have high potential for replacing classical cadmium and lead chalcogenide quantum dots in many fields. We give an overview of the chemical synthesis methods of the different systems reported to date, classifying them according to the obtained crystal structure. Next, we discuss their photophysical properties and give a brief description of the main fields of application. Finally, we conclude by outlining current challenges and related future directions of this exponentially growing domain.

Graphical abstract: Ternary and quaternary metal chalcogenide nanocrystals: synthesis, properties and applications

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Publication details

The article was received on 11 Feb 2013, accepted on 04 Apr 2013 and first published on 04 Apr 2013


Article type: Feature Article
DOI: 10.1039/C3TC30273C
Citation: J. Mater. Chem. C, 2013,1, 3756-3776
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    Ternary and quaternary metal chalcogenide nanocrystals: synthesis, properties and applications

    D. Aldakov, A. Lefrançois and P. Reiss, J. Mater. Chem. C, 2013, 1, 3756
    DOI: 10.1039/C3TC30273C

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