Olena Okhay
AuthID: R-000-DWG
11
TITLE: Comment on "Hole-pinned defect-dipoles induced colossal permittivity in Bi doped SrTiO3 ceramics with Sr deficiency" Full Text
AUTHORS: Tkach, A; Okhay, O;
PUBLISHED: 2021, SOURCE: JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, VOLUME: 65
AUTHORS: Tkach, A; Okhay, O;
PUBLISHED: 2021, SOURCE: JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, VOLUME: 65
INDEXED IN: 
Scopus 
WOS
Scopus WOS12
TITLE: Graphene/Reduced Graphene Oxide-Carbon Nanotubes Composite Electrodes: From Capacitive to Battery-Type Behaviour
AUTHORS: Okhay, O; Tkach, A;
PUBLISHED: 2021, SOURCE: NANOMATERIALS, VOLUME: 11, ISSUE: 5
AUTHORS: Okhay, O; Tkach, A;
PUBLISHED: 2021, SOURCE: NANOMATERIALS, VOLUME: 11, ISSUE: 5
INDEXED IN: Scopus WOS
Scopus WOS13
TITLE: Impact of Graphene or Reduced Graphene Oxide on Performance of Thermoelectric Composites
AUTHORS: Okhay, O; Tkach, A;
PUBLISHED: 2021, SOURCE: C-JOURNAL OF CARBON RESEARCH, VOLUME: 7, ISSUE: 2
AUTHORS: Okhay, O; Tkach, A;
PUBLISHED: 2021, SOURCE: C-JOURNAL OF CARBON RESEARCH, VOLUME: 7, ISSUE: 2
INDEXED IN: WOS
WOS14
TITLE: Polar Phonon Behaviour in Polycrystalline Bi-Doped Strontium Titanate Thin Films Full Text
AUTHORS: Tkach, A; Okhay, O; Nuzhnyy, D; Petzelt, J; Vilarinho, PM;
PUBLISHED: 2021, SOURCE: MATERIALS, VOLUME: 14, ISSUE: 21
AUTHORS: Tkach, A; Okhay, O; Nuzhnyy, D; Petzelt, J; Vilarinho, PM;
PUBLISHED: 2021, SOURCE: MATERIALS, VOLUME: 14, ISSUE: 21
INDEXED IN: Scopus WOS
Scopus WOS15
TITLE: Comment on "Giant dielectric response in (Nb plus Zn) co-doped strontium titanate ceramics tailored by atmosphere"
AUTHORS: Alexander Tkach; Olena Okhay;
PUBLISHED: 2020, SOURCE: SCRIPTA MATERIALIA, VOLUME: 185
AUTHORS: Alexander Tkach; Olena Okhay;
PUBLISHED: 2020, SOURCE: SCRIPTA MATERIALIA, VOLUME: 185
INDEXED IN: WOS
WOS16
TITLE: Long term durability of solid-state supercapacitor based on reduced graphene oxide aerogel and carbon nanotubes composite electrodes Full Text
AUTHORS: Olena Okhay; Alexander Tkach; Pietro Staiti; Francesco Lufrano;
PUBLISHED: 2020, SOURCE: ELECTROCHIMICA ACTA, VOLUME: 353
AUTHORS: Olena Okhay; Alexander Tkach; Pietro Staiti; Francesco Lufrano;
PUBLISHED: 2020, SOURCE: ELECTROCHIMICA ACTA, VOLUME: 353
INDEXED IN: Scopus WOS
Scopus WOS17
TITLE: Tuning electrical and thermoelectric properties of freestanding graphene oxide papers by carbon nanotubes and heat treatment Full Text
AUTHORS: Okhay, O; Goncalves, G; Dias, C; Ventura, J ; Vieira, EMF; Goncalves, LMV; Tkach, A;
PUBLISHED: 2019, SOURCE: JOURNAL OF ALLOYS AND COMPOUNDS, VOLUME: 781
AUTHORS: Okhay, O; Goncalves, G; Dias, C; Ventura, J ; Vieira, EMF; Goncalves, LMV; Tkach, A;
PUBLISHED: 2019, SOURCE: JOURNAL OF ALLOYS AND COMPOUNDS, VOLUME: 781
18
TITLE: Thermoelectric performance of Nb-doped SrTiO3 enhanced by reduced graphene oxide and Sr deficiency cooperation
AUTHORS: Olena Okhay; Sebastian Zlotnik; Wenjie J Xie; Krzysztof Orlinski; Maria J H Hortiguela Gallo; Gonzalo Otero Irurueta; Antonio J S Fernandes; Dorota A Pawlak; Anke Weidenkaff; Alexander Tkach;
PUBLISHED: 2019, SOURCE: CARBON, VOLUME: 143
AUTHORS: Olena Okhay; Sebastian Zlotnik; Wenjie J Xie; Krzysztof Orlinski; Maria J H Hortiguela Gallo; Gonzalo Otero Irurueta; Antonio J S Fernandes; Dorota A Pawlak; Anke Weidenkaff; Alexander Tkach;
PUBLISHED: 2019, SOURCE: CARBON, VOLUME: 143
INDEXED IN: WOS
WOS19
TITLE: Effect of Solution Conditions on the Properties of Sol-Gel Derived Potassium Sodium Niobate Thin Films on Platinized Sapphire Substrates
AUTHORS: Alexander Tkach; Andre Santos; Sebastian Zlotnik; Ricardo Serrazina; Olena Okhay; Igor Bdikin; Maria Elisabete Costa; Paula M Vilarinho;
PUBLISHED: 2019, SOURCE: NANOMATERIALS, VOLUME: 9, ISSUE: 11
AUTHORS: Alexander Tkach; Andre Santos; Sebastian Zlotnik; Ricardo Serrazina; Olena Okhay; Igor Bdikin; Maria Elisabete Costa; Paula M Vilarinho;
PUBLISHED: 2019, SOURCE: NANOMATERIALS, VOLUME: 9, ISSUE: 11
INDEXED IN: Scopus WOS
Scopus WOS20
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
Scopus