Natalia Stopikowska

Natalia Stopikowska
Adam Mickiewicz University | UAM · Department of Rare Earths

Master of Science

About

21
Publications
1,741
Reads
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434
Citations
Citations since 2017
21 Research Items
434 Citations
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
Additional affiliations
July 2019 - present
Adam Mickiewicz University
Position
  • Researcher
January 2015 - June 2019
Adam Mickiewicz University
Position
  • Research Assistant
Education
October 2019 - June 2023
Adam Mickiewicz University
Field of study
  • Chemical sciences
October 2017 - June 2019
Adam Mickiewicz University
Field of study
  • Chemistry
October 2014 - June 2017
Adam Mickiewicz University
Field of study
  • Chemistry

Publications

Publications (21)
Article
Full-text available
In this study, an optical thermometer based on regenerated cellulose fibers modified with YF3: 20% Yb3+, 2% Er3+ nanoparticles was developed. The presented sensor was fabricated by introducing YF3 nanoparticles into cellulose fibers during their formation by the so-called Lyocell process using N-methylmorpholine N-oxide as a direct solvent of cellu...
Article
Full-text available
Materials that generate pure, single-color emission are desirable in the development and manufacturing of modern optoelectronic devices. This work shows the possibility of generating pure, green up-conversion luminescence upon the excitation of Er3+-doped nanomaterials with a 785 nm NIR laser. The up-converting inorganic nanoluminophores YVO4: Er3+...
Article
Optical thermometers are of great interest due to their non-contact, high-sensitivity and fast measurement characteristics. In this work, a series of dual-center Bi1.96-xMoO6: 0.02Er³⁺, 0.02Tm³⁺, xYb³⁺ (x=0.10-0.35) upconverting materials were prepared by a sol-gel synthesis method. Upon 975 nm excitation, the prepared materials exhibit bright colo...
Article
This work sheds the light on the pump power impact on the performance of luminescent thermometers, which is often underestimated by researchers. The up-converting, inorganic nanoluminophore YVO4:Yb3+, Er3+ (nanothermometer) was synthesized using the hydrothermal method and a subsequent calcination. The nanomaterial appears as a white powder compose...
Article
Up-converting nanothermometer YF3: 20% Yb³⁺, 0.5% Tm³⁺ was obtained via hydrothermal synthesis and a subsequent post-synthesis thermal treatment. The nanomaterial formed a stable colloid and showed (under 975 nm excitation) blue upconversion luminescence visible to the naked eye. The emission spectrum consisted of five thulium ion bands (450–870 nm...
Article
Full-text available
Lanthanide-based luminescent nanothermometers play a crucial role in optical temperature determination. However, due to the strong thermal quenching of the luminescence, as well as the deterioration of their sensitivity and resolution with temperature elevation, they can operate in a relative low temperature range, usually from cryogenic to ≈800 K....
Article
Luminescent lanthanide fluoride core‐shell (LaF3:Tb3+,Ce3+@SiO2‐NH2) nanoparticles, with acetyl salicylic acid (aspirin) coated on the surface were obtained. The synthesized products, combining the potential located in the silica shell with the luminescent activity of the core, were characterized in detail with the use of luminescence spectroscopy,...
Article
The absorption characteristics of lanthanide-based functional materials is of key importance for many scientists and engineers, e.g. in luminescence studies, bioimaging, optical heating/cooling, Raman spectroscopy, as well as industrial applications, such as new light sources, optical sensors, labeling and tracing techniques, etc. Here we show the...
Article
Up-converting core@shell type β-NaYF4:Yb3+-Er3+@SiO2 nanorods have been obtained by a two-step synthesis process, which encompasses hydrothermal and microemulsion routes. The synthesized nanomaterial forms stable aqueous colloids and exhibits a bright dual-center emission (λex= 975 nm), i.e. up-conversion luminescence of Er3+ and down-shifting emis...
Article
A novel, contactless optical sensor of pressure based on the luminescence red-shift and band width (full width at half maximum - FWHM) of the Ce3+-doped fluorapatite - Y6Ba4(SiO4)6F2 powder, has been successfully synthesized via a facile solid-state method. The obtained material exhibits a bright blue emission under UV light excitation. It was char...
Article
Laser-induced morphology transformation of gold nanorods may be used for altering interactions between plasmonic and luminescent nanoparticles (NPs), leading to the formation of new functional nanomaterials with tunable spectroscopic properties. The up-converting, lanthanide-doped core/shell NPs were successfully synthesized and surface modified wi...
Article
Luminescent-plasmonic, core/shell type GdPO4:Eu³⁺/SiO2/NH2/Ag nanomaterials, with elongated, rod-like morphology were successfully synthesized. The Eu³⁺-doped GdPO4 nanorods prepared via hydrothermal synthesis route were surface modified by coating with amine modified silica shell. The as-prepared luminescent core/shell nanostructures were impregna...

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