|
1.
|
First investigation of the morphological and luminescence properties of HfO$_2$ nanoparticles synthesized by photochemical synthesis
/ Villa, Irene (Prague, Inst. Phys.) ; Procházková, Lenka Prouzová (Prague, Inst. Phys. ; Prague, Tech. U.) ; Mihóková, Eva (Prague, Inst. Phys.) ; Babin, Vladimir (Prague, Inst. Phys.) ; Král, Robert (Prague, Inst. Phys.) ; Zemenová, Petra (Prague, Inst. Phys.) ; Falvey, Alexandra (Prague, Inst. Phys.) ; Čuba, Václav (Prague, Tech. U.) ; Salomoni, Matteo (CERN ; Milan Bicocca U.) ; Pagano, Fiammetta (CERN ; Milan Bicocca U.) et al.
For the first time, hafnia (HfO$_2$) nanoparticles have been produced by photochemical synthesis. The photochemical route has been proven to be scalable, affordable, and straightforward to create monoclinic HfO$_2$ nanoparticles with a size of tens of nanometers. [...]
2023 - 10 p.
- Published in : CrystEngComm 25 (2023) 4345-4354
Fulltext: PDF;
|
|
|
2.
|
Timing performance of lead halide perovskite nanoscintillators embedded in a polystyrene matrix
/ Děcká, Kateřina (Prague, Tech. U. ; Prague, Inst. Phys.) ; Pagano, Fiammetta (CERN ; Milan Bicocca U.) ; Frank, Isabel (CERN ; LMU Munich (main)) ; Kratochwil, Nicolaus (CERN) ; Mihóková, Eva (Prague, Tech. U. ; Prague, Inst. Phys.) ; Auffray, Etiennette (CERN) ; Čuba, Václav (Prague, Tech. U.)
Nanomaterials like CsPbBr$_3$, benefiting from quantum confinement effects to feature ultra-fast decay time and tunable emission, are paving the way for the next generation of fast timing detectors. However, an ongoing challenge is to exploit their favorable properties in a full detector, given their size and instability. [...]
2022 - 8 p.
- Published in : J. Mater. Chem. 10 (2022) 12836-12843
Fulltext: PDF;
|
|
|
3.
|
Core–shell ZnO:Ga-SiO$_2$ nanocrystals: limiting particle agglomeration and increasing luminescence via surface defect passivation
/ Procházková, Lenka (Prague, Tech. U. ; Prague, Inst. Phys.) ; Vaněček, Vojtěch (CTU, Prague) ; Čuba, Václav (CTU, Prague) ; Pjatkan, Radek (Unlisted, CZ) ; Martinez-Turtos, Rosana (Milan Bicocca U.) ; Jakubec, Ivo (ASCR, Prague) ; Buryi, Maksym (Prague, Inst. Phys.) ; Omelkov, Sergey (Tartu U.) ; Auffray, Etiennette (CERN) ; Lecoq, Paul (CERN) et al.
Heat treatment is needed to increase the luminescence intensity of ZnO:Ga particles, but it comes at the cost of higher particle agglomeration. Higher agglomeration results in low transparency of scintillating powder when embedded in a matrix and constitutes one of the biggest disadvantages, besides low light yield and low stopping power, of ZnO:Ga powder. [...]
2019 - 7 p.
- Published in : RCS Advances 9 (2019) 28946-28952
|
|
|
4.
|
CsPbBr3 Thin Films on LYSO:Ce Substrates
/ Tomanová, Kateřina (CTU, Prague) ; Suchá, Adéla (CTU, Prague) ; Mihóková, Eva (CTU, Prague) ; Procházková, Lenka (CTU, Prague) ; Jakubec, Ivo (ASCR, Prague) ; Turtos, Rosana M (CERN) ; Gundacker, Stefan (CERN) ; Auffray, Etiennette (CERN) ; Čuba, Václav (CTU, Prague)
We fabricate thin films of lead halide perovskite nanocrystals on glass substrates and cerium-doped LYSO substrates (lutetium-yttrium oxyorthosilicate, LuxY2-xSiO5:Ce) using spin-coating and drop-casting methods, respectively. We study their structural and optical properties. [...]
2020 - 6 p.
- Published in : IEEE Trans. Nucl. Sci. 67 (2020) 933-938
In : 15th International Conference on Inorganic Scintillators and Their Applications, Sendai, Japan, 29 Sep - 04 Oct 2019, pp.933-938
|
|
|
5.
|
On the structure, synthesis, and characterization of ultrafast blue-emitting CsPbBr$_3$ nanoplatelets
/ Tomanová, Kateřina (Prague, Tech. U.) ; Čuba, Václav (Prague, Tech. U.) ; Brik, Mikhail G (Tartu U. ; Inst. Phys., Czestochowa ; Prague, Inst. Phys.) ; Mihóková, Eva (Prague, Inst. Phys.) ; Turtos, Rosana Martinez (CERN) ; Lecoq, Paul (CERN) ; Auffray, Etiennette (CERN) ; Nikl, Martin (Prague, Inst. Phys.)
Recent developments in medical imaging techniques, in particular, those in time-of-flight positron emission tomography put new challenges on scintillating material performance that cannot be fulfilled by conventional scintillators. Bright and ultrafast nanoparticles represent promising candidates to build up an advanced detection system needed. [...]
2019
- Published in : APL Materials 7 (2019) 011104
Fulltext: PDF;
|
|
|
6.
|
Timing performance of ZnO:Ga nanopowder composite scintillators
/ Turtos, Rosana M (Milan Bicocca U.) ; Gundacker, Stefan (CERN) ; Lucchini, Marco T (CERN) ; Procházková, Lenka (Prague, Tech. U.) ; Čuba, Václav (Prague, Tech. U.) ; Burešová, Hana ; Mrázek, Jan (ASCR, Prague) ; Nikl, Martin (Prague, Inst. Phys.) ; Lecoq, Paul (CERN) ; Auffray, Etiennette (CERN)
The implementation of nanocrystal-based composite scintilla-tors as a new generation of ultrafast particle detectors is ex-plored using ZnO:Ga nanopowder. Samples are characterized with a spectral-time resolved photon counting system and pulsed X-rays, followed by coincidence time resolution(CTR) measurements under 511 keV gamma excitation. [...]
2016 - 5 p.
- Published in : Phys. Status Solidi RRL 10 (2016) 843-847
|
|
|
7.
|
Preparation and luminescence properties of ZnO:Ga – polystyrene composite scintillator
/ Burešová, Hana (NUVIA, Czech Republic) ; Procházková, Lenka (Prague, Tech. U.) ; Turtos, Rosana Martinez (Milan Bicocca U.) ; Jarý, Vítězslav (Prague, Inst. Phys.) ; Mihóková, Eva (Prague, Inst. Phys.) ; Beitlerová, Alena (Prague, Inst. Phys.) ; Pjatkan, Radek (NUVIA, Czech Republic) ; Gundacker, Stefan (CERN) ; Auffray, Etiennette (CERN) ; Lecoq, Paul (CERN) et al.
Highly luminescent ZnO:Ga-polystyrene composite (ZnO:Ga-PS) with ultrafast subnanosecond decay was prepared by homogeneous embedding the ZnO:Ga scintillating powder into the scintillating organic matrix. The powder was prepared by photo-induced precipitation with subsequent calcination in air and Ar/H2 atmospheres. [...]
2016 - 10 p.
- Published in : Opt. Express 24 (2016) 15289
|
|
email alert
or subscribe to the 
RSS feed.