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Licensed Unlicensed Requires Authentication Published by De Gruyter (O) April 30, 2018

Towards Low-Toxic Colloidal Quantum Dots

  • Youngjin Jang , Arthur Shapiro , Faris Horani , Yaron Kauffmann and Efrat Lifshitz EMAIL logo


Colloidal quantum dots (CQDs) are of enormous interest in the scientific and engineering fields. During the past few decades, significant efforts have been conducted in investigating Cd- and Pb-based CQDs, resulting in excellent photoluminescence (PL) properties and impressive performance in various applications. But the high toxicity of Cd and Pb elements pushed the scientific community to explore low-toxic CQDs excluding poisonous heavy metals. Several semiconductor materials with lower toxicity than Cd and Pb species have been proposed. This article presents a short overview of recent efforts involving low-toxic CQDs, focusing especially on IV–VI and III–V semiconductors which are active in the near- and short-wave-infrared (IR) regimes. Recent achievements pertinent to Sn- and In-based CQDs are highlighted as representative examples. Finally, limitations and future challenges are discussed in the review.


This authors acknowledge the financial support from the Israel Council for Higher Education-Focal Area Technology (Project No. 872967), the Volkswagen Stiftung (Project No. 88116), the Israel Ministry of Defense (Project No. 4440827018), the Israel Ministry of Trade (Maymad Project No. 54662), the Israel Science Foundation Bikura (Project No. 1508/14), the Israel Science Foundation (Project No. 985/11 and 914/15), the Niedersachsen-Deutsche Technion Gesellschaft E.V. (Project No. ZN2916) and the European Commission via the Marie-Sklodowska Curie action Phonsi (Project No. H2020-MSCAITN-642656).


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Received: 2018-02-11
Accepted: 2018-03-26
Published Online: 2018-04-30
Published in Print: 2018-08-28

©2018 Walter de Gruyter GmbH, Berlin/Boston

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