Претраживање
Приказ резултата 1-10 од 14
Optical and thermal investigation of sol-gel derived Eu(3+): Y(2)SiO(5) nanoparticles
(Acta Physica Polonica A, 2007)
Investigation done on Y(2)SiO(5) nanoparticles doped with Eu(3+) ions obtained with the alkoxy sol-gel route is presented in this paper. We investigate the optical and thermal properties of obtained material during the ...
Exchange Bias Effect in NdFeO3 System of Nanoparticles
(Acta Physica Polonica A, 2017)
We study the effect of nanometric size on the crystal structure, magnetic environment of iron and magnetization in NdFeO3 system of nanoparticles. The average particle size of NdFeO3 nanoparticles increases with annealing ...
Investigation on the crystallization process of Eu3+: CaSiO3 gel using optical and thermal methods
(Acta Physica Polonica A, 2007)
Alkoxy sol-gel technique is an important preparation method for production of rare-earth based phosphors. Crystallization of gel provides a way to prepare phosphors on lower working temperatures than those required for the ...
Ion-Induced Modification of Structure and Magnetic Anisotropy in Granular FeCoZr-CaF2 Nanocomposite Films
(Acta Physica Polonica A, 2015)
The paper reports on the results of structural analysis and magnetometry of granular nanocomposite films FeCoZr-CaF2 irradiated with Xe and Kr ions at different fluences. The observed effect of enhanced perpendicular ...
Magnetic Properties of NdFe0.9Mn0.1O3
(Acta Physica Polonica A, 2014)
In our paper we study effect of Mn for Fe substitution on magnetic properties of NdFex-1MnxO3 compounds for x = 0 and 0.1, which have been grown by the OFZ technique. The Neel temperature decreases from T-N1 = 691 K to ...
Gd2O3:Eu3+/PMMA Composite: Thermal and Luminescence Properties
(Acta Physica Polonica A, 2010)
In recent years there is an increasing interest in obtaining and investigating composite materials that comprise nanoparticles as fillers and polymers as matrix. Such composites may display combined features of both ...
Optical Properties of Y2O3:Eu3+ Red Emitting Phosphor Obtained via Spray Pyrolysis
(Acta Physica Polonica A, 2009)
In the present work we explored the possibility of obtaining Y2O3:Eu3+ mu m-size particles by an ultrasonic spray pyrolysis method. As-prepared sample constitutes of spherical, hollow particles with an average size of 1 ...
LaYO3:Sm3+ Nanocrystalline Phosphor: Preparation and Emission Properties
(Acta Physica Polonica A, 2011)
Samarium doped LaYO3 nanocrystalline phosphor powders are obtained by polymer complex solution method. Stoichiometric quantities of La2O3, Y2O3 and for dopant ions Sm2O3 were dissolved in hot nitric acid. Polyethylene ...
Characterization of X-Ray Diamond Detector by Monte Carlo Method
(Acta Physica Polonica A, 2009)
The use of diamond as material for X-ray detector is subject of investigation and practice in radiotherapy, space and material science and technology. This paper presents the results of application of Monte Carlo method ...
Radiation Absorption Characteristics of Titanium Alloys
(Acta Physica Polonica A, 2009)
Titanium alloys have found numerous applications in space research, and nuclear industry and research. Since X-rays constitute an important part of the space radiation environment, numerical simulations of radiation ...