Dielectric Properties of Au/SrTiO3/p-Si Structure Obtained by RF Magnetron Sputtering in a Wide Frequency Range

Kinaci B.

SILICON, cilt.14, sa.6, ss.2717-2722, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Sayı: 6
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1007/s12633-021-01067-7
  • Dergi Adı: SILICON
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Compendex, INSPEC
  • Sayfa Sayıları: ss.2717-2722
  • Anahtar Kelimeler: SrTiO3, Dielectric properties, Frequency, Negative dielectric constant
  • Gazi Üniversitesi Adresli: Hayır

Özet

Dielectric properties of Au/p-Si structure with Strontium titanate (SrTiO3) interlayer were examined in the frequency range of 100-900 kHz (by step 100 kHz). SrTiO3 thin film was deposited on p-type Si substrate using radio frequency (RF) magnetron sputtering method at a substrate temperature of 500 degrees C. Dielectric parameters such as dielectric constant (epsilon(')), dielectric loss (epsilon('')), real modulus (M-'), imaginary modulus (M-''), and electrical conductivity (sigma(ac)) of the Au/SrTiO3/p-Si structure were calculated by evaluating the results obtained from admittance spectroscopy in the frequency range of 100-900 kHz by step 100 kHz. According to the obtained results, epsilon(') values take negative values as a result of depending on frequency measurements.