Synthesis and Properties of Water-Soluble Blue-Emitting Mn-Alloyed CdTe Quantum Dots View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2018-05-02

AUTHORS

Olena Tynkevych, Volodymyr Karavan, Igor Vorona, Svitlana Filonenko, Yuriy Khalavka

ABSTRACT

In this work, we prepared CdTe quantum dots, and series of Cd1-xMnxTe-alloyed quantum dots with narrow size distribution by an ion-exchange reaction in water solution. We found that the photoluminescence peaks are shifted to higher energies with the increasing Mn2+ content. So far, this is the first report of blue-emitting CdTe-based quantum dots. By means of cyclic voltammetry, we detected features of electrochemical activity of manganese energy levels formed inside the Cd1-xMnxTe-alloyed quantum dot band gap. This allowed us to estimate their energy position. We also demonstrate paramagnetic behavior for Cd1-xMnxTe-alloyed quantum dots which confirmed the successful ion-exchange reaction. More... »

PAGES

132

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1186/s11671-018-2529-y

DOI

http://dx.doi.org/10.1186/s11671-018-2529-y

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1103737928

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/29721641


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