Oleksandr Tkach

Additive Manufacturing for Smart Plastics (AM4SP)

ParticipanteIndustry National

BioMEMs Avançados para Engenharia de Tecidos: Aplicações em Tecidos Duros (BioMEMs)

ParticipanteFundação para a Ciência e a Tecnologia

Materiais flexíveis piezoelétricos de alto desempenho preparados utilizando grafite porosa organizada para sensores e geração de energia (PIEZOFLEX)

ParticipanteFundação para a Ciência e a Tecnologia

Multiferroicos e magnetoeléctricos para spintrónica: barreiras e interfaces (PTDC/CTM/099415/2008)

ParticipanteFundação para a Ciência e a Tecnologia

Multifunctional all-oxide heterostructures for electronic applications (IF/00602/2013/CP1162/CT0015)

CoordenadorFundação para a Ciência e a Tecnologia

Design and Characterization of Novel Barium Strontium Titanate Thick Films for Sub-6 GHz RF Applications

Bouca, P; Figueiredo, R; Wlodarkiewicz, A; Tkach, A; Matos, JN; Vilarinho, PM; de Carvalho, NB
2022, IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 70, 1, 611-621.

Elastic moduli of potassium sodium niobate ceramics: Impact of spark plasma texturing

Pinho, R; Tkach, A; Carpenter, MA; Noudem, J; Costa, ME; Vilarinho, PM
2022, SCRIPTA MATERIALIA, 218.

Flash Sintered Potassium Sodium Niobate: High-Performance Piezoelectric Ceramics at Low Thermal Budget Processing

Serrazina, R; Tkach, A; Pereira, L; Senos, AMOR; Vilarinho, PM
2022, MATERIALS, 15, 19.

High Q Dielectric Titanium Tellurite Thick Films on Alumina Substrates for High Frequency Telecommunications

Su, XM; Tkach, A; Krupka, J; Vilarinho, PM
2022, MATERIALS, 15, 2.

Low-Temperature Dielectric Response of Strontium Titanate Thin Films Manipulated by Zn Doping

Okhay, O; Vilarinho, PM; Tkach, A
2022, MATERIALS, 15, 3.

Polyaniline-Graphene Electrodes Prepared by Electropolymerization for High-Performance Capacitive Electrodes: A Brief Review

Okhay, O; Tkach, A
2022, BATTERIES-BASEL, 8, 10.

Reduced Graphene Oxide-Polycarbonate Electrodes on Different Supports for Symmetric Supercapacitors

Okhay, O; Bastos, AC; Andreeva, K; Tuukkanen, S; Tkach, A
2022, C-JOURNAL OF CARBON RESEARCH, 8, 1.

Synergetic Effect of Polyaniline and Graphene in Their Composite Supercapacitor Electrodes: Impact of Components and Parameters of Chemical Oxidative Polymerization

Okhay, O; Tkach, A
2022, NANOMATERIALS, 12, 15.

RF Phase Shifters Design Based on Barium Strontium Titanate Thick and Thin Films

P. Bouça, R. Pinho, A. Wlodarkiewicz, A. Tkach, J.N. Matos, P.M. Vilarinho, N. Borges de Carvalho
2022, 2022 IEEE MTT-S INTERNATIONAL CONFERENCE ON MICROWAVE ACOUSTICS AND MECHANICS (IC-MAM).

Flexible Piezoelectric Chitosan and Barium Titanate Biocomposite Films for Sensor Applications

Sierra, DLG; Bdikin, I; Tkach, A; Vilarinho, PM; Nunes, C; Ferreira, P
2021, EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2021, 9, 792-803.
ISBN: 1099-0682

Strontium Titanate: Synthesis, Properties and Uses

Tkach, A; Vilarinho, PM
2019, New York, Nova Science Publishers, Inc.
ISBN: 978-1-53615-437-5

Metal Oxide Based Thermoelectric Materials

In Vijay Kumar, Irfan Ayoub, Vishal Sharma, Hendrik C. Swart (Eds.), Optical Properties of Metal Oxide Nanostructures
Olena Okhay and Alexander Tkach
2023, 399-430, Singapore , Springer Nature Singapore Pte Ltd..
ISBN: 978-981-99-5639-5

Antiferrodistortive phase transition in doped strontium titanate ceramics: the role of the perovskite lattice vacancies

In J. Clabel and V. Rivera (Eds.), Perovskite Ceramics
Alexander Tkach
2022, 77-98, Elsevier.
ISBN: 978-0-323-90586-2

Nonstoichiometry Role on the Properties of Quantum-Paraelectric Ceramics

In Tanasescu, S. (Eds.), Structure Processing Properties Relationships in Stoichiometric and Nonstoichiometric Oxides
Tkach, A; Vilarinho, PM
2020, London, IntechOpen.
ISBN: 978-1-78985-452-7

Strain effect on the properties of polar dielectric thin films

In Alexander Pogrebnjak and Valentin Novosad (Eds.), Advances in Thin Films, Nanostructured Materials, and Coatings
Tkach, A; Okhay, O; Santos, A; Zlotnik, S; Serrazina, R; Vilarinho, PM; Costa, ME
2019, 331-342, Springer Nature Singapore Pte Ltd.
ISBN: 978-981-13-6132-6

Sr/Ti ratio in strontium titanate ceramics: designing the microstructure, envisaging the properties

In Alexander Tkach and Paula Vilarinho (Eds.), Strontium Titanate: Synthesis, Properties and Uses
Amaral, L; Tkach, A; Vilarinho, PM; Senos, AMR
2019, 71-100, New York, Nova Science Publishers, Inc.
ISBN: 978-1-53615-437-5

Effect of bismuth doping on the properties of strontium titanate thin films

In Alexander Tkach and Paula Vilarinho (Eds.), Strontium Titanate: Synthesis, Properties and Uses
Okhay, O; Tkach, A; Vilarinho, PM
2019, 209-258, New York, Nova Science Publishers, Inc.
ISBN: 978-1-53615-437-5

Enhancement of thermoelectric performance in SrTiO3-based ceramics by processing conditions

In Alexander Tkach and Paula Vilarinho (Eds.), Strontium Titanate: Synthesis, Properties and Uses
Tkach, A; Resende, J; Diaz-Chao, P; Guilmeau, E; Costa, ME; Vilarinho, PM
2019, 297-322, New York, Nova Science Publishers, Inc.
ISBN: 978-1-53615-437-5

Functional Tantalum-based Oxides: From the Structure to the Applications

In Ashutosh Tiwari, Rosario A. Gerhardt andMagdalena Szutkowska (Eds.), Advanced Ceramic Materials
S. Zlotnik, A. Tkach, P. M. Vilarinho
2016, 337-283, John Wiley & Sons, Inc.
ISBN: 978-1-119-24244-4

Strontium Titanate: Synthesis, Properties and Uses

Tkach, A; Vilarinho, PM
2019, New York, Nova Science Publishers, Inc.
ISBN: 978-1-53615-437-5

Hydrothermal Synthesis of Barium Titanate Nanoparticles: The Effect of the Heating System

F. Sá, M. Silva, M. Ivanov, A. Tkach, P.M. Vilarinho, P. Ferreira
2022, Materials Proceedings, 14, 1-4.
ISBN: 978-1-6654-6831-2