Preparation of graphene quantum dots through liquid phase exfoliation method
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F18%3A43914077" target="_blank" >RIV/62156489:43210/18:43914077 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26310/18:PU128626
Result on the web
<a href="https://doi.org/10.1016/j.jlumin.2018.08.017" target="_blank" >https://doi.org/10.1016/j.jlumin.2018.08.017</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jlumin.2018.08.017" target="_blank" >10.1016/j.jlumin.2018.08.017</a>
Alternative languages
Result language
angličtina
Original language name
Preparation of graphene quantum dots through liquid phase exfoliation method
Original language description
Here we report the preparation of low defect blue fluorescent graphene quantum dots (GQDs) through microwave expansion and liquid phase exfoliation (LPE) of graphite flakes with a high preparation yield of 0.63 g of GQDs per 1 g of original graphite substrate. The maximum emission in the prepared GQDs occurs at 467 nm for 370 nm excitation. The photoluminescence quantum yield of the prepared GQDs was measured as 3.4%. Prepared GQDs are composed of carbon, oxygen and nitrogen elements. They have high percentage (86%) of C-C/C = C, indicating few structural defects of the graphitic core, due to lesser number of edge- or surface-located oxygenated functional groups. This preparation technique, unlike others, does not require additional chemical components and is energetically undemanding. Furthermore, the reported method is also suitable for scalable preparation of quantum structures from other two-dimensional layered materials.
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
10403 - Physical chemistry
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)
Others
Publication year
2018
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 Luminescence
ISSN
0022-2313
e-ISSN
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Volume of the periodical
204
Issue of the periodical within the volume
December
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
6
Pages from-to
203-208
UT code for WoS article
000445668900032
EID of the result in the Scopus database
2-s2.0-85051407155