N,N ',N '-trisubstituted thiourea as a novel sulfur source for the synthesis of Mn-doped ZnS QDs
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F20%3A39916517" target="_blank" >RIV/00216275:25310/20:39916517 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0925838820311774?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925838820311774?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2020.154814" target="_blank" >10.1016/j.jallcom.2020.154814</a>
Alternative languages
Result language
angličtina
Original language name
N,N ',N '-trisubstituted thiourea as a novel sulfur source for the synthesis of Mn-doped ZnS QDs
Original language description
Doping of semiconductor quantum dots (QDs) by transition metals (such as Mn, Cu, Ni, etc.) is a great technique to impact the optical and structural properties of the host materials. The introduction of a small amount of impurity into the host semiconductor matrix leads to the shift of PL emission due to the change in the recombination process. The new emission pathways created by dopant influence the photoluminescence intensity, Stokes shift, lifetime and stability of QDs. Mn-doped ZnS QDs (1-15 mol. %) have been synthesized by the effective low-cost and nontoxic hot-injection method. N-phenylmorpholine-4-carbothioamide has been successfully applied as a novel source of sulfur in the synthesis of Mn-doped ZnS QDs. X-ray diffraction (XRD), scanning transmission electron microscopy (STEM) and infrared (IR) spectroscopy were used for the characterization of morphology and structure of synthesized Mn-doped ZnS QDs. Our materials exhibit strong photoluminescence yellow-orange emission with a photoluminescence quantum yield (PL QY) of 41%. All Mn-doped ZnS QDs have a face-centered cubic structure with a mean crystalline size of 3.8-5.1 nm. Additionally, this synthetic approach enables the synthesis of Mn-doped ZnS QDs with tunable band gaps between similar to 3.5 eV and 3.60 eV.
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
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Alloys and Compounds
ISSN
0925-8388
e-ISSN
0925-8388
Volume of the periodical
831
Issue of the periodical within the volume
August
Country of publishing house
CH - SWITZERLAND
Number of pages
8
Pages from-to
"154814-1"-"154814-8"
UT code for WoS article
000531727600009
EID of the result in the Scopus database
2-s2.0-85081924248