Effect of (Co-TeO2-doped polyvinylpyrrolidone) organic interlayer on the electrophysical characteristics of Al/p-Si (MS) structures

Farazin J., Asl M. S., Pirgholi-Givi G., Delbari S. A., Namini A. S., ALTINDAL Ş., ...Daha Fazla

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, cilt.32, sa.17, ss.21909-21922, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 32 Sayı: 17
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1007/s10854-021-06544-8
  • Dergi Adı: JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.21909-21922
  • Gazi Üniversitesi Adresli: Evet

Özet

In this paper, (Co-TeO2) nanostructures were synthesized using the microwave-assisted method for the fabrication of (PVP:Co-TeO2) as an organic interlayer (OI) at Al/p-Si interface. Structural and optical properties of nanostructures were investigated through XRD, SEM, EDX, and UV-Vis techniques. The interface states (N-ss) energy dependence diagram were also obtained from the voltage-dependent ideality factor (n) and barrier height (BH). Experimental results confirmed that the OI improved the performance of MS structure in respect of low N-ss, R-s, n, and high rectification rate (RR). Both the forward- and reverse-bias conduction mechanisms such as ohmic, space/trap-charge-limited current (SCLC/TCLC), and Poole-Frenkel/Schottky emission (PFE/SE), respectively, were implemented. Additionally, basic dielectric parameters of two structures were investigated in detail using impedance-frequency (Z-f) measurements in a wide frequency range (0.1-1000 kHz) and they were a strong function of frequency because of the existence of N-ss, surface polarization, and interlayer.