Olena Okhay
AuthID: R-000-DWG
21
TITLE: Effect of bismuth doping on the properties of strontium titanate thin films
AUTHORS: Okhay, O; Tkach, A; Vilarinho, PM;
PUBLISHED: 2019, SOURCE: Strontium Titanate: Synthesis, Properties and Uses
AUTHORS: Okhay, O; Tkach, A; Vilarinho, PM;
PUBLISHED: 2019, SOURCE: Strontium Titanate: Synthesis, Properties and Uses
INDEXED IN: 
Scopus
Scopus22
TITLE: Mechanical strain engineering of dielectric tunability in polycrystalline SrTiO3 thin films Full Text
AUTHORS: Alexander Tkach; Olena Okhay; Ian M Reaney; Paula Maria Vilarinho;
PUBLISHED: 2018, SOURCE: JOURNAL OF MATERIALS CHEMISTRY C, VOLUME: 6, ISSUE: 10
AUTHORS: Alexander Tkach; Olena Okhay; Ian M Reaney; Paula Maria Vilarinho;
PUBLISHED: 2018, SOURCE: JOURNAL OF MATERIALS CHEMISTRY C, VOLUME: 6, ISSUE: 10
INDEXED IN: Scopus 
WOS
Scopus WOS23
TITLE: Strain-Mediated Substrate Effect on the Dielectric and Ferroelectric Response of Potassium Sodium Niobate Thin Films Full Text
AUTHORS: Alexander Tkach; Andre Santos; Sebastian Zlotnik; Ricardo Serrazina; Olena Okhay; Igor Bdikin; Maria Elisabete Costa; Paula M Vilarinho;
PUBLISHED: 2018, SOURCE: COATINGS, VOLUME: 8, ISSUE: 12
AUTHORS: Alexander Tkach; Andre Santos; Sebastian Zlotnik; Ricardo Serrazina; Olena Okhay; Igor Bdikin; Maria Elisabete Costa; Paula M Vilarinho;
PUBLISHED: 2018, SOURCE: COATINGS, VOLUME: 8, ISSUE: 12
INDEXED IN: Scopus WOS
Scopus WOS24
TITLE: Polar phonons in polycrystalline SrTiO3 thin films: The role of the substrate
AUTHORS: Olena Okhay; Alexander Tkach; Dmitry Nuzhnyy; Jan Petzelt; Paula Maria Vilarinho;
PUBLISHED: 2018, SOURCE: FERROELECTRICS, VOLUME: 532, ISSUE: 1
AUTHORS: Olena Okhay; Alexander Tkach; Dmitry Nuzhnyy; Jan Petzelt; Paula Maria Vilarinho;
PUBLISHED: 2018, SOURCE: FERROELECTRICS, VOLUME: 532, ISSUE: 1
INDEXED IN: Scopus WOS
Scopus WOS25
TITLE: Giant dielectric permittivity and high tunability in Y-doped SrTiO3 ceramics tailored by sintering atmosphere Full Text
AUTHORS: Alexander Tkach; Olena Okhay; Abilio Almeida ; Paula M Vilarinho;
PUBLISHED: 2017, SOURCE: ACTA MATERIALIA, VOLUME: 130
AUTHORS: Alexander Tkach; Olena Okhay; Abilio Almeida ; Paula M Vilarinho;
PUBLISHED: 2017, SOURCE: ACTA MATERIALIA, VOLUME: 130
26
TITLE: Thin film versus paper-like reduced graphene oxide: Comparative study of structural, electrical, and thermoelectrical properties Full Text
AUTHORS: Olena Okhay; Gil Goncalves; Alexander Tkach; Catarina Dias ; Joao Ventura ; Manuel Fernando R Ribeiro da Silva; Luis Miguel V Valente Goncalves; Elby Titus;
PUBLISHED: 2016, SOURCE: 6th International Conference on Advanced Nanomaterials (ANM) in JOURNAL OF APPLIED PHYSICS, VOLUME: 120, ISSUE: 5
AUTHORS: Olena Okhay; Gil Goncalves; Alexander Tkach; Catarina Dias ; Joao Ventura ; Manuel Fernando R Ribeiro da Silva; Luis Miguel V Valente Goncalves; Elby Titus;
PUBLISHED: 2016, SOURCE: 6th International Conference on Advanced Nanomaterials (ANM) in JOURNAL OF APPLIED PHYSICS, VOLUME: 120, ISSUE: 5
27
TITLE: Drastic modification of graphene oxide properties by incorporation of nickel: a simple inorganic chemistry approach Full Text
AUTHORS: Olena Okhay; Rahul Krishna; Alexander Tkach; Mathias Klaeui; Luis M Guerra; Joo Ventura ; Elby Titus; Jose J A Gracio;
PUBLISHED: 2015, SOURCE: JOURNAL OF MATERIALS SCIENCE, VOLUME: 50, ISSUE: 9
AUTHORS: Olena Okhay; Rahul Krishna; Alexander Tkach; Mathias Klaeui; Luis M Guerra; Joo Ventura ; Elby Titus; Jose J A Gracio;
PUBLISHED: 2015, SOURCE: JOURNAL OF MATERIALS SCIENCE, VOLUME: 50, ISSUE: 9
28
TITLE: Electrical and Magnetic Properties of Graphene Films with Ni Nanoparticles
AUTHORS: Olena Okhay; Luis M Guerra; Joao Ventura ; Alexander Tkach; Mathias Klaeui; Rahul Krishna; Elby Titus;
PUBLISHED: 2015, SOURCE: 5th International Conference on Advanced Nanomaterials (ANM) in MATERIALS TODAY-PROCEEDINGS, VOLUME: 2, ISSUE: 1
AUTHORS: Olena Okhay; Luis M Guerra; Joao Ventura ; Alexander Tkach; Mathias Klaeui; Rahul Krishna; Elby Titus;
PUBLISHED: 2015, SOURCE: 5th International Conference on Advanced Nanomaterials (ANM) in MATERIALS TODAY-PROCEEDINGS, VOLUME: 2, ISSUE: 1
29
TITLE: Photovoltage Study of Graphene Oxide with Ni Nanoparticles
AUTHORS: Olena Okhay; Rahul Krishna; Elby Titus; Kateryna Andreeva; Rada Savkina; Oleksii Smirnov;
PUBLISHED: 2015, SOURCE: 5th International Conference on Advanced Nanomaterials (ANM) in MATERIALS TODAY-PROCEEDINGS, VOLUME: 2, ISSUE: 1
AUTHORS: Olena Okhay; Rahul Krishna; Elby Titus; Kateryna Andreeva; Rada Savkina; Oleksii Smirnov;
PUBLISHED: 2015, SOURCE: 5th International Conference on Advanced Nanomaterials (ANM) in MATERIALS TODAY-PROCEEDINGS, VOLUME: 2, ISSUE: 1
30
TITLE: Rapid Electrochemical Synthesis of Hydrogenated Graphene Oxide Using Ni Nanoparticles Full Text
AUTHORS: Rahul Krishna; Elby Titus; Olena Okhay; Joao Campos Gil; Joao Ventura ; Venkata Ramana, EV; Jose J A Gracio;
PUBLISHED: 2014, SOURCE: INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, VOLUME: 9, ISSUE: 7
AUTHORS: Rahul Krishna; Elby Titus; Olena Okhay; Joao Campos Gil; Joao Ventura ; Venkata Ramana, EV; Jose J A Gracio;
PUBLISHED: 2014, SOURCE: INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, VOLUME: 9, ISSUE: 7
INDEXED IN: Scopus WOS
Scopus WOS