Olena Okhay
  Post-Doc Fellowship  
   
  e-mail: olena@ua.pt  
  department: Materials and Ceramic Engineering  
   
   
   
publications
Impact of Graphene or Reduced Graphene Oxide on Performance of Thermoelectric Composites
Okhay, O; Tkach, A
2021, C-JOURNAL OF CARBON RESEARCH, 7, 2,
CICECO Authorship
Graphene/Reduced Graphene Oxide-Carbon Nanotubes Composite Electrodes: From Capacitive to Battery-Type Behaviour
Okhay, O; Tkach, A
2021, NANOMATERIALS, 11, 5,
CICECO Authorship
Comment on Hole-pinned defect-dipoles induced colossal permittivity in Bi doped SrTiO3 ceramics with Sr deficiency
Tkach, A; Okhay, O
2021, JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 65, 151-153.
CICECO Authorship
Comment on Point defect structure of La-doped SrTiO3 ceramics with colossal permittivity
Tkach, A; Okhay, O
2021, SCRIPTA MATERIALIA, 190, 38-39.
CICECO Authorship
Polar Phonon Behaviour in Polycrystalline Bi-Doped Strontium Titanate Thin Films
Tkach, A; Okhay, O; Nuzhnyy, D; Petzelt, J; Vilarinho, PM
2021, MATERIALS, 14, 21,
CICECO Authorship
Comment on Giant dielectric response in (Nb plus Zn) co-doped strontium titanate ceramics tailored by atmosphere
Tkach, A; Okhay, O
2020, SCRIPTA MATERIALIA, 185, 19-20.
CICECO Authorship
Long term durability of solid-state supercapacitor based on reduced graphene oxide aerogel and carbon nanotubes composite electrodes
Okhay, O; Tkach, A; Staiti, P; Lufrano, F
2020, ELECTROCHIMICA ACTA, 353,
CICECO Authorship
Effect of Solution Conditions on the Properties of Sol-Gel Derived Potassium Sodium Niobate Thin Films on Platinized Sapphire Substrates
Tkach, A; Santos, A; Zlotnik, S; Serrazina, R; Okhay, O; Bdikin, I; Costa, ME; Vilarinho, PM
2019, NANOMATERIALS, 9, 11,
CICECO Authorship
Thermoelectric performance of Nb-doped SrTiO3 enhanced by reduced graphene oxide and Sr deficiency cooperation
Okhay, O; Zlotnik, S; Xie, WJ; Orlinski, K; Gallo, MJH; Otero-Irurueta, G; Fernandes, AJS; Pawlak, DA; Weidenkaff, A; Tkach, A
2019, CARBON, 143, 215-222.
CICECO Authorship
Tuning electrical and thermoelectric properties of freestanding graphene oxide papers by carbon nanotubes and heat treatment
Okhay, O; Goncalves, G; Dias, C; Ventura, J; Vieira, EMF; Goncalves, LMV; Tkach, A
2019, JOURNAL OF ALLOYS AND COMPOUNDS, 781, 196-200.
CICECO Authorship
Mechanical strain engineering of dielectric tunability in polycrystalline SrTiO3 thin films
Tkach, A; Okhay, O; Reaney, IM; Vilarinho, PM
2018, JOURNAL OF MATERIALS CHEMISTRY C, 6, 10, 2467-2475.
CICECO Authorship
Abnormal Grain Growth as a Method To Enhance the Thermoelectric Performance of Nb-Doped Strontium Titanate Ceramics
Tkach, A; Resende, J; Saravanan, KV; Costa, ME; Diaz-Chao, P; Guilmeau, E; Okhay, O; Vilarinho, PM
2018, ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 6, 12, 15988-15994.
CICECO Authorship
Strain-Mediated Substrate Effect on the Dielectric and Ferroelectric Response of Potassium Sodium Niobate Thin Films
Tkach, A; Santos, A; Zlotnik, S; Serrazina, R; Okhay, O; Bdikin, I; Costa, ME; Vilarinho, PM
2018, COATINGS, 8, 12,
CICECO Authorship
Polar phonons in polycrystalline SrTiO3 thin films: The role of the substrate
Okhay, O; Tkach, A; Nuzhnyy, D; Petzelt, J; Vilarinho, PM
2018, FERROELECTRICS, 532, 1, 89-99.
CICECO Authorship
Giant dielectric permittivity and high tunability in Y-doped SrTiO3 ceramics tailored by sintering atmosphere
Tkach, A; Okhay, O; Almeida, A; Vilarinho, PM
2017, ACTA MATERIALIA, 130, 249-260.
CICECO Authorship

 
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