Synthetic development in Cd–Zn–Se quantum dots chemistry
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39914843" target="_blank" >RIV/00216275:25310/19:39914843 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/19:PU135048
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0925346719306056?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925346719306056?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.optmat.2019.109385" target="_blank" >10.1016/j.optmat.2019.109385</a>
Alternative languages
Result language
angličtina
Original language name
Synthetic development in Cd–Zn–Se quantum dots chemistry
Original language description
Despite a great number of studies devoted to the synthesis of chalcogenide quantum dots (QDs), many essential questions remain open up to date. Primarily, it is a safety of the synthesis, both in the laboratory and in the industry. Another issue is the reproducibility of QDs with desired characteristics. And, without doubt, the ability to adjust properties of the resulting QDs by the implementation of various approaches to the synthesis is significant. Here we provide a novel approach to the synthesis of ternary Cd–Zn–Se QDs (ratios Cd: Zn=10 : 90; 25 : 75; 50 : 50; 75 : 25; 90 : 10) using disubstituted selenourea as a novel source of selenium. (Z)-1-hexyl-3- (octadec-9-enyl)selenourea was synthesized in three steps with a good yield of the final product. It opens up a simple, convenient and environmentally friendly way to the synthesis of the selected QDs. Varying the molar ratios of Cd and Zn, QDs of different composition were produced in high yields. According to the conducted research, highly photoluminescent ternary Cd–Zn–Se QDs (photoluminescent quantum yield PL QY up to 64%) are uniform, both in elemental composition and in size (3.6–5.3 nm). Moreover, the selection of given selenourea made it possible to scale the synthesis by 24 times with an increase in the amount of QDs without loss of product quality. This demonstrates the feasibility to produce such type of materials on an industrial scale.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Optical Materials
ISSN
0925-3467
e-ISSN
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Volume of the periodical
97
Issue of the periodical within the volume
November
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
"109385-1"-"109385-9"
UT code for WoS article
000501396600016
EID of the result in the Scopus database
2-s2.0-85072263559