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Impact of top metal electrodes on current conduction in WO3 thin films

  • Savita Sharma ORCID logo , Monika Tomar and Sudha Gulati ORCID logo EMAIL logo
Published/Copyright: May 15, 2023
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 114 Issue 7-8

Abstract

Using radio-frequency (rf) sputtering technique tungsten oxide (WO3) thin films (∼150 nm) were deposited in a gas mixture of Ar and O2 at 10 mTorr pressure on indium tin oxide (ITO) and corning glass substrates. The films were annealed at 400 °C. Structural and optical properties of films were studied. Metal–insulator–metal (MIM) structure was made by depositing metal electrode (Ag, Al, Au) on the prepared WO3 thin films (on ITO substrate) using thermal evaporation technique. Electrical properties of the MIM structure were studied by plotting current versus voltage (I–V) curves for Ag, Al and Au metal electrodes. Current conduction mechanism in WO3 film was determined by plotting and fitting I–V data in different equations of current mechanisms.

Keywords: Conduction mechanism; Metal electrodes; Sputtering; Thin film
Corresponding author: Sudha Gulati, Physics Department, Kalindi College, University of Delhi, Delhi 110008, India, E-mail:

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: Authors are thankful to Late Prof. Vinay Gupta for all the guidance and support to carry out the research work.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-12-22
Accepted: 2023-01-30
Published Online: 2023-05-15
Published in Print: 2023-07-28

© 2023 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/ijmr-2021-8723
Keywords for this article
Conduction mechanism; Metal electrodes; Sputtering; Thin film

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. International conference on energy and advanced materials
  4. Review
  5. Analysis of different printing technologies for metallization of crystalline silicon solar cells
  6. Original Papers
  7. DFT investigation of nonlinear optical response of organic compound: acetylsalicylic acid
  8. Experimental (FT‐Raman, FT‐IR and NMR) and theoretical (DFT) calculations, thermodynamic parameters, molecular docking and NLO (non-linear optical) properties of N‐(2,6‐dimethylphenyl)‐1‐piperazineacetamide
  9. Investigation of nonlinear optical responses of organic derivative of imidazole: imidazole-2-carboxaldehyde
  10. Mach–Zehnder interferometric analysis of planar polymer waveguide having an adlayer of WS2 for biosensing applications
  11. Linear mode conversion of terahertz radiation into terahertz surface plasmon wave over a graphene-free space interface
  12. Generation of second harmonic terahertz surface plasmon wave over a rippled graphene surface
  13. Investigation on structural, magnetic and optical properties of Sm–Co Co-substituted BiFeO3 samples
  14. Synthesis and optical characterization of Sr and Ti doped BiFeO3 multiferroics
  15. A comparative study on structural, magnetic and optical properties of rare earth ions substituted Bi1−xR x FeO3 (R: Ce3+, Sm3+ and Dy3+) nanoparticles
  16. Thermal, structural and optical properties of Pb1−xLa x TiO3 prepared using modified sol–gel route
  17. Biophotonic sensor design for the detection of reproductive hormones in females by using a 1D defective annular photonic crystal
  18. Spin density wave and antiferromagnetic transition in EuFe2As2: a high field transport and heat capacity study
  19. Impact of top metal electrodes on current conduction in WO3 thin films
  20. Atomistic simulation of Stoner–Wohlfarth (SW) particle
  21. Optimization of Coulomb glass system using quenching and annealing at small disorders
  22. Analytical modeling of adsorption isotherms for pristine and functionalized carbon nanotubes as gas sensors
  23. Effect of polymer blending on the electrochemical properties of porous PVDF/PMMA membrane immobilized with organic solvent based liquid electrolyte
  24. Structural, electronic, and thermal studies of Poly(ethylene oxide) based solid-state polymer electrolyte
  25. Milling route for the synthesis of nano-aluminium hydroxide for the development of low-density polymer composites
  26. Thermal properties of AlN (nano) filled LDPE composites
  27. Thermophysical characterization of mustard husk (MSH) and MSH char synthesized by the microwave pyrolysis of MSH
  28. Nano structured silver particles as green catalyst for remediation of methylene blue dye from water
  29. AlGaN/GaN heterostructures for high power and high-speed applications
  30. Role of interfacial electric field on thermal conductivity of In x Al1−xN/GaN superlattice (x = 0.17)
  31. Sensitivity assessment of dielectric modulated GaN material based SOI-FinFET for label-free biosensing applications
  32. Temperature-dependent analysis of heterojunction-free GaN FinFET through optimization of controlling gate parameters and dielectric materials
  33. Modelling of the exploding wire technique, a novel approach utilized for the synthesis of nanomaterials
  34. Rotating magnetic field configuration for controlled particle flux in material processing applications
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  36. DGM – Deutsche Gesellschaft für Materialkunde
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