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

Lattice dynamics and dielectric response of Mg-doped SrTiO3 ceramics in a wide frequency range

Tkach, A; Vilarinho, PM; Kholkin, AL; Pashkin, A; Samoukhina, P; Pokorny, J; Veljko, S; Petzelt, J
2005, JOURNAL OF APPLIED PHYSICS, 97, 4.

Effect of nonstoichiometry on the microstructure and dielectric properties of strontium titanate ceramics

Tkach, A; Vilarinho, PM; Senos, AMR; Kholkin, AL
2005, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 25, 12, 2769-2772.

Structural and dielectric properties of Mn-doped strontium titanate ceramics

Tkach, A; Vilarinho, PM; Kholkin, A
2004, FERROELECTRICS, 304, 87-90.

Effect of Mg doping on the structural and dielectric properties of strontium titanate ceramics

Tkach, A; Vilarinho, PM; Kholkin, A
2004, APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 79, 8, 2013-2020.

Structural and dielectric properties of Mg-doped strontium titanate ceramics: Dependence on the materials, processing

Tkach, A; Vilarinho, PM; Kholkin, A; Reaney, IM; Petzelt, J
2004, ADVANCED MATERIALS FORUM II, 455-456, 40-44.
ISBN: 0-87849-941-5

Dielectric permittivity and Cr3+ impurity luminescence of Sr0.99M0.01TiO3 and SrTi0.99Mg0.01O3

Trepakov, VA; Savinov, ME; Kudyk, IB; Pashkin, A; Kapphan, SE; Vilarinho, PM; Tkach, A; Kholkin, AL; Jastrabik, L
2003, FERROELECTRICS, 294, 229-238.

Critical phonons and R- zero-phonon emission line of Cr3+ in Mg-doped SrTiO3

Trepakov, VA; Kudyk, IB; Kapphan, SE; Savinov, ME; Pashkin, A; Jastrabik, L; Tkach, A; Vilarinho, PM; Kholkin, AL
2003, JOURNAL OF LUMINESCENCE, 102, 536-542.

Synthesis by sol-gel and characterization of strontium titanate powder

Tkach, A; Vilarinho, PM; Avdeev, M; Kholkin, AL; Baptista, JL
2002, ADVANCED MATERIALS FORUM I, 230-2, 40-43.
ISBN: 0-87849-905-9

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

Metal Oxide Based Thermoelectric Materials

In Kumar, V., Ayoub, I., Sharma, V., Swart, H.C. (Eds.), Optical Properties of Metal Oxide Nanostructures
Okhay O.; Tkach A.
2023, Progress in Optical Science and Photonics, 26, 399-430, Springer.
ISBN: 978-981-99-5640-1

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