A Compare Study on Electrical Properties of MS Diodes with and Without CoFe2O4-PVP Interlayer

Tataroglu A., Buyukbas Ulusan A., Altindal Ş., Azizian-Kalandaragh Y.

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS, cilt.31, sa.4, ss.1668-1675, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 31 Sayı: 4
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1007/s10904-020-01798-x
  • Dergi Adı: JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Chimica, Compendex, INSPEC
  • Sayfa Sayıları: ss.1668-1675
  • Anahtar Kelimeler: Cobalt ferrite (CoFe2O4), Polyvinylpyrrolidone (PVP), MS and MPS diode, Current conduction mechanisms, Electronic parameters, SCHOTTKY DIODES, INTERFACE, PHOTODETECTOR
  • Gazi Üniversitesi Adresli: Evet

Özet

Cobalt ferrite (CoFe2O4) nanostructures in powder form were synthesized by an ultrasound assisted method. The crystalline structure of it was determined by XRD method. The prepared powder was mixed with an aqueous polyvinylpyrrolidone (PVP) solution to utilize as an interfacial thin film. The prepared CoFe2O4-PVP solution was deposited on the n-Si wafer utilizing electrospinning method. Electrical characteristics of the Au/n-Si (MS) and Au/(CoFe2O4-PVP)/n-Si (MPS) diodes were investigated using current and admittance (Y = G + i omega C) measurements. Electrical parameters like ideality factor (n), barrier height (phi(B)), and series resistance (R-s) of them were extracted from I-V measurements. The Ln(I-F)-(V-F) plots were drawn to determine the current conduction mechanisms (CCMs). Besides, the other diode parameters including diffusion potential, concentration of donor atoms, depletion layer width, barrier height and Fermi-energy were extracted from C-2-V characteristic. As a result, the electrical parameters of these diodes were compared with each other, and the obtained results confirm that the polymer interlayer between M and S is more affective on electrical performance of the diode.