Search results for: electrical%20properties

• Archives of Electrical Engineering

  Journals

  ISSN: 1427-4221 , eISSN: 2300-2506

• Electrical and structural properties of Nb-doped SrTiO3

  Publication

  • J. Karczewski
  • B. Bochentyn
  • M. Gazda
  • P. Jasiński
  • B. Kusz

  - JOURNAL OF ELECTROCERAMICS - Year 2010

  Niobium-doped strontium titanate synthesized via conventional solid-state reaction has been studied. Influence of niobium content on the lattice parameters and electrical conductivity has been reported. Various reduction conditions have been investigated. For samples reduced in hydrogen at 1400°C, a transition from thermally activated to metallic behavior has been observed. Maximum electrical conductivity (ca. 55 Scm−1 at 650°C)...

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• Microstructure and electrical properties of manganese borosilicate glasses

  Publication

  • P. Kupracz
  • J. Karczewski
  • M. Prześniak-Welenc
  • N. A. Wójcik
  • M. J. Winiarski
  • T. Klimczuk
  • R. J. Barczyński

  - JOURNAL OF NON-CRYSTALLINE SOLIDS - Year 2015

  The structure, optical and electrical properties of manganese borosilicate glasses of the composition xMnO–(80 − x)SiO 2 –20B 2 O 3 (x = 40, 50, and 60 mol%) were investigated. The dependence of the glass structure on its composition was discussed and related to electrical properties. A separation of two amorphous phases was observed. It was suggested that one phase is MnO-rich and the other is SiO 2 -rich. It was found that...

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• Optical and electrical properties of Pr0.8Sr0.2MnO3 thin films.

  Publication

  • T. Suzuki
  • P. Jasiński
  • V. Petrovsky
  • X. Zhou
  • H. U. Anderson

  - JAPANESE JOURNAL OF APPLIED PHYSICS - Year 2003

  Przedstawiono preparatykę, strukturę oraz optyczne i elektryczne właściwości cienkowarstwowego Pr0.8Sr0.2MnO3. Gęste filmy o grubości 50-70nm zostały naniesione na monokrystaliczne podłoże szafirowe metodą odwirowania prekursora polimerowego. Wyniki optycznych pomiarów zostały skorelowane z temperaturą syntezy filmów. Pokazano, że optyczne spektra zmieniają kształt wraz ze zmianą struktury filmu z amorficznej do krystalicznej....

• Electrical properties of polymer coatings modified with nanoadditives

  Publication

  • B. Górnicka
  • K. Sieradzka
  • J. Domaradzki
  • M. S. Łapiński

  - Year 2009

  W pracy przedstawiono właściwości elektryczne (antystatyczne, rezystancję powierzchniową) polimerowych powłok. Pokazano wpływ różnych domieszek na czasy rozładowania się warstwy oraz na jej rezystancję powierzchniową.

• Protection against electric shock in electrical installations with low voltage generating sets

  Publication

  • S. Czapp

  - Year 2005

  W referacie przedstawiono zasady ochrony przeciwporażeniowej, zgodne z wymaganiami międzynarodowymi, w sytuacji kiedy instalacja elektryczna jest zasilana z niskonapięciowych zespołów prądotwórczych. Zwrócono uwagę na dobór zabezpieczeń przeciwporażeniowych oraz na wymiarowanie uziemień.

• Ab-initio study of electrical and optical properties of allylamine

  Publication

  • B. Dec

  - Year 2018

  The Density functional theory is one of most promising methodology in fast and accurate calculations of electrical and optical properties from the atomic basis. In this paper, we calculate electrical and optical properties of allylamine (2-propen 1- amine) in terms of accuracy and speed of calculations obtained by selection of DFT-1/2 method with ultrasoft Vanderbilt pseudopotentials. Comparison of density of states between...

• Electrical properties of nanocrystalline Sm-doped ceria ceramics

  Publication

  • P. Jasiński

  - SOLID STATE IONICS - Year 2006

  Właściwości ceramiki z cerii zależa zwykle silnie od struktury ziaren. W pracy przedstawiono właściwości elektryczne ceramiki z cerii domieszkowanej samarem wykonanje w technologii 'net shape' posiadającej strukturę nanokrystaliczną.

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• Microstructural and electrical properties of Y0.07Sr0.93-xTiO3 perovskite ceramics

  Publication

  • T. Miruszewski
  • B. Bochentyn
  • J. Karczewski
  • M. Gazda
  • B. Kusz

  - CENTRAL EUROPEAN JOURNAL OF PHYSICS - Year 2012

  In order to find a relationship between electrical and microstructural properties, yttrium-doped strontium titanate (7 mol%) with various values of strontium nonstoichiometry was investigated and shown in this work. It has been observed that yttrium doping can affect the electrical properties of SrTiO3 to a great extent. Moreover, the microstructural and electrical properties can be influenced by strontium nonstoichiometry. The...

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• Structural and electrical properties of titanium-doped yttrium niobate

  Publication

  • P. Winiarz
  • A. D. Mielewczyk-Gryń
  • S. L. Wachowski
  • P. Jasiński
  • A. Witkowska
  • M. Gazda

  - JOURNAL OF ALLOYS AND COMPOUNDS - Year 2018

  In this work, the influence of the substitution of niobium by titanium in Y3Nb1-xTixO7-δ on the structural and electrical properties is reported. Several experimental techniques, i.e. X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), X-Ray Photoelectron Spectroscopy (XPS) and Electrochemical Impedance Spectroscopy (EIS), were applied to investigate the system Y3Nb1-xTixO7-δ. Titanium in Y3Nb1-xTixO7-δ is an acceptor-type...

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• Ab-initio study of electrical and optical properties of allylamine

  Publication

  • B. Dec
  • K. Pyrchla
  • R. Bogdanowicz

  - Photonics Letters of Poland - Year 2018

  The Density functional theory is one of most promising methodology in fast and accurate calculations of electrical and optical properties from the atomic basis. In this paper, we calculate electrical and optical properties of allylamine (2-propen 1- amine) in terms of accuracy and speed of calculations obtained by selection of DFT-1/2 method with ultrasoft Vanderbilt pseudopotentials. Comparison of density of states between molecule...

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• Praseodymium substituted lanthanum orthoniobate: Electrical and structural properties

  Publication

  • K. Dzierzgowski
  • S. L. Wachowski
  • W. Gojtowska
  • I. Szpunar
  • P. Jasiński
  • M. Gazda
  • A. D. Mielewczyk-Gryń

  - CERAMICS INTERNATIONAL - Year 2018

  The results of ionic transport and structural measurements for the lanthanum orthoniobate doped by praseodymium are presented and discussed. The influence of calcium co-doping on these properties has also been analyzed. The results suggest the predominant protonic conductivity for the investigated system in the whole range of investigated temperatures. The influence of calcium co-doping on phase purity is analyzed.

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• Phase Separation and Electrical Properties of Manganese Borosilicate Glasses

  Publication

  • P. Kupracz
  • N. A. Wójcik
  • M. Gazda
  • J. Karczewski
  • R. J. Barczyński

  - Procedia Engineering - Year 2014

  The structure and electrical properties of manganese borosilicate glasses of a composition of xMnO-(0.8-x)SiO2-(0.2)B2O3 (x=0.4, 0.5 and 0.6 in mol) were investigated by impedance spectroscopy, SEM, XRD and confocal microscopy methods. The influence of composition on the glass structure and electrical properties was discussed. A separation of two amorphous phases was observed and it was concluded that one phase is SiO2-rich and...

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• Electrical and structural properties of Nb-doped SrTiO3 ceramics

  Publication

  • J. Karczewski
  • B. Riegel
  • M. Gazda
  • P. Jasiński
  • B. Kusz

  - JOURNAL OF ELECTROCERAMICS - Year 2009

  Przebadano wpływ zawartości niobu na strukturę i własności elektryczne tytanianu strontu. Zbadany został wpływ warunków redukcji i porowatości na właściwości materiału. Za optymalne uznano domieszkowanie niobem w wysokości 2% molowych.

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• The optical and electrical properties of nanocrystalline La0.4Sr0.6TiO3 thin films.

  Publication

  • T. Suzuki
  • P. Jasiński
  • V. Petrovsky
  • H. U. Anderson

  - Year 2004

  W pracy badano wpływ mikrostruktury cienkich filmów La0.8Sr0.6TiO3 na właściwości optyczne. Gęste filmy o grubości około 200nm były przygotowane na szafirze z prekursorów polimerowych metodą wirową. Filmy były wypalone w temperaturze 500-800 stC. Badania rentgenowskie wskazały utworzenie kubicznej struktury perowskitowej podobnej do niedomieszkowanego SrTiO3. Wielkość ziaren zależała od temperatury wypalenia osiągając 30nm w 800stC....

• Non-linear electrical properties of myocardium in computer simulation

  Publication

  • K. Grzęda
  • P. Czarnul
  • A. Z. Nowakowski

  - Year 2005

  Pomiar impedancji elektrycznej jest obiecującą metodą monitorowania stanu mięśnia sercowego, szczególnie podczas niedokrwienia. Typową metodą pomiaru jest rejestrowanie odpowiedzi-napięcia na pobudzenie prądowe. Odpowiedź jest często aproksymowana jako liniowa względem pobudzenia. Artykuł jest poświęcony oszacowaniu rzędu wielkości nieliniowych komponentów w odpowiedzi.

• Electrical properties of YSZ films prepared by netshape technology

  Publication

  • P. Jasiński
  • V. Petrovsky
  • T. Suzuki
  • T. Petrovsky
  • H. U. Anderson

  - Year 2005

  W pracy przedstawiono wyniki badań domieszkowanego tlenku cyrkonu przygotowanego metodą net shape. Materiał został przygotowany w postaci warstwy o grubości 1-10um na szafirze oraz folii platynowej. Zbadano włąsiciwości elektryczne przygotowanych warst.

• Electrical properties of polymer humidity sensor based on polyethyleneimine.

  Publication

  • T. Zajt
  • G. Jasiński
  • B. Chachulski

  - Proceedings of SPIE - Year 2003

  W pracy przedstawiono wyniki badań amperometrycznych właściwości czujników wilgotności na bazie PEI. Pokazano, że przepływ prądu jest wynikiem reakcji elektrodowej na anodzie.

• Terbium Substituted Lanthanum Orthoniobate: Electrical and Structural Properties

  Publication

  • K. Dzierzgowski
  • S. L. Wachowski
  • M. Gazda
  • A. D. Mielewczyk-Gryń

  - Crystals - Year 2019

  The results of electrical conductivity studies, structural measurements and thermogravimetric analysis of La1−xTbxNbO4+δ (x = 0.00, 0.05, 0.1, 0.15, 0.2, 0.3) are presented and discussed. The phase transition temperatures, measured by high-temperature x-ray diffraction, were 480 °C, 500 °C, and 530 °C for La0.9Tb0.1NbO4+δ, La0.8Tb0.2NbO4+δ, and La0.7Tb0.3NbO4+δ, respectively. The impedance spectroscopy results suggest mixed conductivity...

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• High-Temperature Structural and Electrical Properties of BaLnCo2O6 Positrodes

  Publication

  • I. Szpunar
  • R. Strandbakke
  • M. H. Sorby
  • S. L. Wachowski
  • M. Balaguer
  • M. Tarach
  • J. M. Serra
  • A. Witkowska
  • E. Dzik
  • T. Norby... and 2 others

  - Materials - Year 2020

  The application of double perovskite cobaltites BaLnCo2O6−δ (Ln = lanthanide element) in electrochemical devices for energy conversion requires control of their properties at operating conditions. This work presents a study of a series of BaLnCo2O6−δ (Ln = La, Pr, Nd) with a focus on the evolution of structural and electrical properties with temperature. Symmetry, oxygen non-stoichiometry, and cobalt valence state have been examined...

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• Structural and Electrical Properties of STF Materials for SOFC Applications

  Publication

  • M. Tołczyk
  • S. Molin
  • M. Gazda
  • P. Jasiński

  - Year 2010

  W tym artykule przedstawiono badania tytanian strontu domieszkowanego żelazem. Synteza dwuetapowa była niezbędna do uzyskania czystego fazowo proszku o pożądanych właściwościach. Przewodnictwo elektryczne wykazało właściwości typu zero-TCR dla składu STF35. Poziom przewodnictwa elektrycznego różnił się o więcej niż jeden rząd wartości dla wytworzonych materiałów. Reaktywność chemiczną między YSZ i STF badano w zakresie temperatur...

• Poznan University of Technology Academic Journals. Electrical Engineering

  Journals

  ISSN: 1897-0737

• Electrical properties of poros nanocrystalline undoped ceria oxygen sensor

  Publication

  • S. Molin
  • M. Gazda
  • P. Jasiński
  • A. Z. Nowakowski

  - Elektronika : konstrukcje, technologie, zastosowania - Year 2008

  W pracy zaprezentowano wykonanie czujnika z niedomieszkowanego tlenku ceru o nanometrowych ziarnach krystalicznych. Zastosowana metoda nanoszenia warstw zalicza się do metod niskotemperaturowych. Wytworzone warstwy przebadano za pomocą dyfrakcji rentgenowskiej, mikroskopii elektronowej oraz spektroskopii impedancyjnej. Wykonane czujniki charakteryzują się szybkim czasem odpowiedzi i stabilnym zachowaniem przy zmianach ciśnienia...

• Microstructural and electrical properties of Y0.07Sr0.93-xTiO3-δ perovskite ceramics

  Publication

  • T. Miruszewski
  • B. Bochentyn
  • J. Karczewski
  • M. Gazda
  • B. Kusz

  - CENTRAL EUROPEAN JOURNAL OF PHYSICS - Year 2012

  In order to find a relationship between electrical and microstructural properties, yttrium-doped strontiumtitanate (7 mol%) with various values of strontium nonstoichiometry was investigated and shown in this work.It has been observed that yttrium doping can affect the electrical properties of SrTiO3 to a great extent.Moreover, the microstructural and electrical properties can be influenced by strontium nonstoichiometry.The defect...

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• Influence of electropolymerization conditions on the morphological and electrical properties of PEDOT film

  Publication

  • K. Cysewska
  • J. Karczewski
  • P. Jasiński

  - ELECTROCHIMICA ACTA - Year 2015

  In this work the effects of electropolymerization conditions on the morphological properties and conductivity of poly(3,4-ethylenedioxythiophene) (PEDOT) film have been studied. PEDOT films were electrochemically synthesized in a one step process from acetonitrile solution containing 3,4-ethylenedioxythiophene (EDOT) and lithium perchlorate. Based on atomic force microscopy, scanning electron microscopy, cyclic voltammetry and...

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• Electrochemical Activity and Electrical Properties of Optimized Polypyrrole Coatings on Iron

  Publication

  • K. Cysewska
  • S. Virtanen
  • P. Jasiński

  - JOURNAL OF THE ELECTROCHEMICAL SOCIETY - Year 2015

  In this work, electrochemical activity and electrical properties of polypyrrole (PPy) coated iron electrodes have been investigated. PPy film was electrochemically polymerized from sodium salicylate aqueous solution under conditions, which provided an increase of iron corrosion resistance. It was noticed that the pH of the solution and the applied electrode potential range during the study of the polymer properties had an influence...

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• Electrical properties of ceria films prepared by net shape technology

  Publication

  • P. Jasiński
  • V. Petrovsky

  - Year 2005

  W pracy przedtswiono procedurę przygotowania gęstych warstw elektrolitu z wykorzystaniem technologii Net Shpe. Technologia ta na znaczne obniżenie temperatury przygotania tego typu warst. Okresloślono parametry elektryczne warst domieszkowanego ceru przygotowanych w tej technologii.

• Application of percolation theory for description of electrical properties of conducting coatings

  Publication

  • J. Orlikowski

  - Physico-Chemical Mechanics of Materials - Year 2002

  Przedstawiono pomiary elektryczne i elektrochemiczne powłok organicznych przewodzących prąd elektryczny i mogących pełnić rolę anody w systemie ochrony katodowej żelbetonu. Za pomocą pomiarów impedancyjnych dokonano oceny rezystancji powłoki w funkcji zawartości grafitu. Na tej podstawie oszacowano próg perkolacji powłoki epoksydowej domieszkowanej elektrografitem. Ocenę obciążalności prądowej powłok przewodzących dokonano wykonując...

• Electrical properties of organic and perovskite systems used in solar cells

  Publication

  • D. Głowienka

  - Year 2019

  Nowadays, a great progress in the areas of molecular and hybrid photovoltaics is observed. The devices based on organic and perovskite materials are getting attention mostly due to their low cost production process. However, their efficiency and stability are still lower than for inorganic materials which make them less popular. Therefore, a detailed understanding of the device physics is fundamental for organic and perovskite...

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• Journal of Electrical Engineering

  Journals

  ISSN: 1335-3632 , eISSN: 1339-309X

• Electrical properties and structure of lead-borate glass containing iron ions

  Publication

  • N. Szreder
  • R. Barczyński
  • J. Karczewski
  • M. Gazda
  • N. Wójcik

  - SOLID STATE IONICS - Year 2014

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• Effect of short time reduction on electrical properties of bismuth-silicate glasses

  Publication

  • K. Trzebiatowski
  • J. Gackowska
  • W. Lizak
  • L. Murawski

  - OPTICA APPLICATA - Year 2006

  Podczas krótkiego wygrzewania szkieł bizmutowo-krzemianowych w wodorze (około 5 min w 375C) przewodnictwo powierzchniowe wzrasta o kilka rzędów wartości. Nośnikiem ładunku w tych próbkach jest hopping elektronowy między zlokalizowanymi stanami w badanej warstwie krzemu, zawierającej małe klastry Bi. Wpływ granul bizmutu na przewodnictwo jest widoczny w drugim stadium redukcji, które zachodzi po redukcji dłuższej niż 4h.

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• Electrical properties of Y0.08Sr0.92Ti0.92Nb0.08O3-δ after reduction in different reducing conditions

  Publication

  • J. Karczewski
  • B. Bochentyn
  • S. Molin
  • A. Winiarski
  • M. Gazda
  • P. Jasiński
  • L. Murawski
  • B. Kusz

  - JOURNAL OF ALLOYS AND COMPOUNDS - Year 2009

  Electrical properties of perovskite Y0.08Sr0.92Ti0.92Nb0.08O3−ı after reduction in different conditions were studied. Relatively high electrical conductivity in samples reduced in ammonia was observed. The conductivity of Y0.08Sr0.92Ti0.92Nb0.08O3−ı reduced in ammonia at 1500 ◦C was of about 600 S/cm at 200 ◦C. Conductivity after reduction in ammonia at 1500 ◦C was stable both in hydrogen and oxygen atmosphere up to 600 ◦C. Reduction...

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• Microstructural and electrical properties of Y0:07Sr0:93−xTiO3− perovskite ceramics

  Publication

  • T. Miruszewski
  • B. Bochentyn
  • J. Karczewski
  • M. Gazda
  • B. Kusz

  - CENTRAL EUROPEAN JOURNAL OF PHYSICS - Year 2012

  In order to find a relationship between electrical and microstructural properties, yttrium-doped strontium titanate (7 mol%) with various values of strontium nonstoichiometry was investigated and shown in this work. It has been observed that yttrium doping can affect the electrical properties of SrTiO3 to a great extent. Moreover, the microstructural and electrical properties can be influenced by strontium nonstoichiometry. The...

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• Electrical properties and structure of lead-borate glass containing iron ions.

  Publication

  • N. A. Wójcik
  • R. J. Barczyński
  • J. Karczewski
  • M. Gazda

  - SOLID STATE IONICS - Year 2014

  The ac and dc conductivity in iron–lead-borate glass samples was investigated in the frequency range from 1 mHz to 1 MHz and in the temperature range from 153 K to 423 K. The structure was investigated by the means of atomic force microscopy (AFM) and the crystalline phases (if present) were identified by the means of X-ray diffractometry. Two types of ac electrical behaviour were observed. The first group of glass samples which...

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• Electrical properties of Y0.08Sr0.92Ti0.92Nb0.08O3_−delta after reduction in different reducing conditions

  Publication

  • J. Karczewski
  • B. Riegel
  • S. Molin
  • A. Winiarski
  • M. Gazda
  • P. Jasiński
  • L. Murawski
  • B. Kusz

  - JOURNAL OF ALLOYS AND COMPOUNDS - Year 2009

  Praca przedstawia badania właściwości elektrycznych perowskitów Y0.08Sr0.92Ti0.92Nb0.08O3−ı redukowanych w różnych warunkach termicznych. Obserwowano wysoką przewodność elektryczną próbek redukowanych w atmosferze amoniaku. Przewodność Y0.08Sr0.92Ti0.92Nb0.08O3−ı redukowanego w amoniaku w 1500 ◦C była rzędu 600 S/cm w 200 ◦C. Przewodność elektryczna próbek redukowanych w amoniaku w 1500 ◦C była stabilna zarówno w atmosferze wodoru...

• Optical and Electrical Properties of Iodine Doped n-Type ZnSe Crystals

  Publication

  • M. Balcerzyk
  • F. Firszt
  • H. Męczyńska
  • M. Balcerzyk

  - ACTA PHYSICA POLONICA A - Year 1991

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• Synthesis, microstructure and electrical properties of nanocrystalline calcium doped lanthanum orthoniobate

  Publication

  • K. Wiciak-Pawłowska
  • T. Miruszewski
  • P. Winiarz
  • K. Zagórski
  • A. D. Mielewczyk-Gryń
  • S. L. Wachowski
  • J. Strychalska-Nowak
  • M. Gazda
  • K. Dzierzgowski

  - JOURNAL OF SOLID STATE CHEMISTRY - Year 2019

• Electrical properties of Na2O-CaO-P2O5 glasses doped with SiO2 and Si3N4

  Publication

  • N. A. Wójcik
  • B. Jonson
  • R. J. Barczyński
  • P. Kupracz
  • D. Möncke
  • S. Ali

  - SOLID STATE IONICS - Year 2018

  Sodium-calcium-phosphate glasses doped with SiO2 or Si3N4 having similar sodium ion concentrations were prepared by melt quenching. The conductivity was measured by impedance spectroscopy under nitrogen atmosphere in a wide frequency range (10 mHz–1 MHz) and wide temperature range (153–473 K). At 36.6 °C, DC conductivities of all glasses vary between 1.1 ∗ 10−12 and 8.9 ∗ 10−12 S cm−1 and have similar activation energies (between...

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• Structural and electrical properties of Cr-doped SrTiO 3 porous materials

  Publication

  • A. Łącz
  • Ł. Łańcucki
  • R. Lach
  • B. Kamecki
  • E. Drożdż

  - INTERNATIONAL JOURNAL OF HYDROGEN ENERGY - Year 2018

  Series of single-phase materials with assumed formula SrTi1−xCrxO3 (where x = 0, 1, 4, 6 mol.%) were obtained by sol-gel method. The structure and microstructure of materials were characterised by X-ray diffraction and scanning electron microscopy methods. Moreover, the study of electrical properties and evaluation of chemical stability in CO2/H2O atmosphere was performed by electrochemical impedance spectroscopy and thermogravimery...

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• Influence of material properties of charge on electrical parameters of induction heating setup

  Publication

  • A. CIEŚLAK

  - Przegląd Elektrotechniczny - Year 2018

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• The stand for determining of thermal‐electrical material properties of induction heated charge

  Publication

  • J. Zgraja

  - COMPEL-THE INTERNATIONAL JOURNAL FOR COMPUTATION AND MATHEMATICS IN ELECTRICAL AND ELECTRONIC ENGINEERING - Year 2011

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• Synthesis, microstructure and electrical properties of nanocrystalline calcium doped lanthanum orthoniobate

  Publication

  • T. Miruszewski
  • P. Winiarz
  • K. Dzierzgowski
  • K. Wiciak-Pawłowska
  • K. Zagórski
  • A. Morawski
  • A. D. Mielewczyk-Gryń
  • S. L. Wachowski
  • J. Strychalska-Nowak
  • M. Sawczak
  • M. Gazda

  - JOURNAL OF SOLID STATE CHEMISTRY - Year 2019

  The single phase lanthanum orthoniobate with tetragonal structure has been synthesized by the means of mechanosynthesis method. The studies have shown the crystal structure of La0.98Ca0.02NbO4 depends on the synthesis stage. The samples were predominantly in the tetragonal phase with a trace amount of the monoclinic phase. The SEM studies of morphology and microstructure have shown nanocrystallinity of the materials. The Raman...

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• Effects of Na+, K+ and B3+ Substitutions on the Electrical Properties of La10Si6O27 Ceramics

  Publication

  • S. Wang
  • Y. Hsu
  • Y. Liao
  • T. Yang
  • P. Jasiński

  - JOURNAL OF ELECTRONIC MATERIALS - Year 2019

  Doping of Na and K at La sites and of B at Si site in La10Si6O27 with oxyapatite structure and fabrication of their ceramics were made by the solid-state reaction method. It was found that partial substitution of Na+ and K+ on La sites decreased the sinterability of the La10Si6O27 based ceramics, whereas partial substitution of B3+ on the Si site improved the sinterability. Na+ and K+ substitutions in La10−xNaxSi6O27−x and La10−xKxSi6O27−x...

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• Effects of Na+, K+ and B3+ Substitutions on the Electrical Properties of La10Si6O27 Ceramics

  Publication

  • S. Wang
  • Y. Hsu
  • Y. Liao
  • T. Yang
  • P. Jasiński

  - ECS Transactions - Year 2019

  Doping of Na and K at La sites and of B at Si site in La10Si6O27 with oxyapatite structure and fabrication of their ceramics were made by solid-state reaction method. It was found that partial substitution of Na+ and K+ on La sites decreased the sinterability of the La10Si6O27 based ceramics, whereas partial substitution of B3+ on Si site imporved the sinterability. Na+ and K+ substitutions in La10-xNaxSi6O27-x and La10-xKxSi6O27-x...

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• Praseodymium Orthoniobate and Praseodymium Substituted Lanthanum Orthoniobate: Electrical and Structural Properties

  Publication

  • K. Dzierzgowski
  • S. L. Wachowski
  • M. S. Łapiński
  • A. D. Mielewczyk-Gryń
  • M. Gazda

  - Materials - Year 2022

  In this paper, the structural properties and the electrical conductivity of La1−xPrxNbO4+δ (x = 0.00, 0.05, 0.1, 0.15, 0.2, 0.3) and PrNbO4+δ are presented and discussed. All synthesized samples crystallized in a monoclinic structure with similar thermal expansion coefficients. The phase transition temperature between the monoclinic and tetragonal structure increases with increasing praseodymium content from 500 ◦C for undoped...

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• Effect of Synthesis Parameters of Graphene/Fe2O3 Nanocomposites on Their Structural and Electrical Conductivity Properties

  Publication

  • A. Jedrzejewska
  • D. Sibera
  • U. Narkiewicz
  • R. Pełech
  • R. Jedrzejewski
  • R. Pełech

  - ACTA PHYSICA POLONICA A - Year 2017

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• Synthesis, crystal structure and electrical properties of A-site cation ordered BaErMn2O5 and BaErMn2O6

  Publication

  • K. Świerczek
  • A. Klimkowicz
  • K. Zheng
  • B. Dabrowski

  - Journal of Solid State Chemistry - Year 2013

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• Electrical properties of hybrid planar diode based on palladium phthalocyanine and titanium dioxide

  Publication

  • G. Jarosz
  • B. Kościelska
  • R. Signerski

  - MATERIALS SCIENCE-POLAND - Year 2013

  This work details experimental studies of a planar diode made of indium tin oxide/titanium dioxide/palladium phthalocyanine/gold. The rectification ratio of current was 105 at 1.5 V. The analysis of the electrical properties of the system was based on small signal complex capacitance spectra measured in the frequency range of 25 Hz-1 MHz at different values of bias. No depletion region at the TiO2/PdPc interface was observed. Forward...

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• Cell Membrane Transport Mechanisms: Ion Channels and Electrical Properties of Cell Membranes

  Publication

  • J. Kulbacka
  • A. Choromańska
  • J. Rossowska
  • J. Weżgowiec
  • J. Saczko
  • M. Rols

  - Year 2017

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