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Behaviour of thermal expansion of (1-x)Pb(Ni1/3Nb2/3)O3–xPbTiO3 solid solutions
(Estonian Academy Publishers, 2017)
The features of the dependence of the bulk coefficient of thermal expansion of the (1-x)Pb(Ni1/3Nb2/3)O3-xPbTiO3 solid solution studied in the series of x = 0-0.8 in the temperature range from 100 to 750 K are reported. ...
Complex multilayer carbon structures for green energetics
(Estonian Academy Publishers, 2017)
We investigated a promising material for hydrogen storage and sensing. The material was obtained by exfoliating
recycled graphite waste and simultaneously modifying the product with metal impurities (Bi, V, Cu). As a ...
Influence of uniaxial pressure on dielectric properties of (1-x)Na0.5Bi0.5TiO3–xSrTiO3 for x = 0.01, 0.04, and 0.1 ceramics
(Estonian Academy Publishers, 2017)
The conventional solid-state sintering was applied to synthesized (1-x)Na0.5Bi0.5TiO3-xSrTiO3 (x = 0.01, 0.04, and 0.1) ceramics. Dielectric measurements of these ceramics were taken in the temperature range from 20 to 600 ...
Thermal disorder and correlation effects in anti-perovskite-type copper nitride
(Elsevier Ltd, 2017)
Reverse Monte Carlo simulations coupled with evolutionary algorithm were employed for the analysis of the temperature dependent (10–300 K) Cu K-edge extended X-ray absorption fine structure (EXAFS) spectra of polycrystalline ...
Differently substituted benzonitriles for non-doped OLEDs
(Elsevier Ltd, 2020)
Towards highly efficient doping-free organic light-emitting diodes, five benzonitrile-based emitters with different substitution pattern were designed exploiting symmetrical donor-acceptor-donor and asymmetrical ...
Electric relaxation and Mn3+/Mn4+ charge transfer in Fe-doped Bi12MnO20–BiMn2O5 structural self-composite
(Springer New York LLC, 2017)
Fe-doped Bi12MnO20–BiMn2O5 ceramics was sintered at 1130 K for 6 h in ambient air. Two centro-symmetric phases formed thermodynamically stable self-composite material that was deduced from X-ray pattern analysis. The lattice ...
Methoxycarbazolyl-disubstituted dibenzofuranes as holes- and electrons-transporting hosts for phosphorescent and TADF-based OLEDs
(Elsevier Ltd, 2020)
In the search of universal host materials for organic light emitting diodes a new series of bipolar host materials containing methoxy-substituted carbazoles as the electron-donating and dibenzofuran as an electron-accepting ...
All-Organic Waveguide Sensor for Volatile Solvent Sensing
(Springer Verlag, 2019)
An all-organic Mach-Zehnder waveguide device for volatile solvent sensing is presented. Optical waveguide devices offer a great potential for various applications in sensing and communications due to multiple advantageous ...
Portable low-cost open-source wireless spectrophotometer for fast and reliable measurements
(Elsevier Ltd, 2020)
We demonstrate a low-cost standalone portable spectrophotometer for fast and reliable measurement execution. The data acquired can be both displayed via a dedicated smartphone application or a computer interface, allowing ...
The effect of heat treatment on the morphology and mobility of Au nanoparticles
(Beilstein-Institut Zur Forderung der Chemischen Wissenschaften, 2020)
In the present paper, we investigate the effect of heat treatment on the geometry and mobility of Au nanoparticles (NPs) on a Si substrate. Chemically synthesized Au NPs of diameter ranging from 5 to 27 nm were annealed ...