Skip to main content
Log in

Effects of oxidation time on the formation of nanosized cerium oxide film from direct current sputtered cerium

  • Original Article
  • Published:
Emergent Materials Aims and scope Submit manuscript

Abstract

Effects of post-sputter oxidation time (7.5, 15, and 30 min) were investigated onto cerium films that were deposited on n-type Si(100) substrate via direct current (DC) sputtering. Cerium oxide (CeO2) films were successfully grown on the substrates after oxidation in oxygen ambient at 800 °C. The film transformed from Ce2O3-rich to CeO2-prone along with the change of oxidation time. Owing to the presence of Ce2O3-rich in the CeO2 film oxidized at 7.5 min, oxygen vacancies were generated and potentially served as the neutral trap sites for electrons during forward bias operation, which led to the acquisition of improved current density-gate voltage (J-Vg) characteristic. The presence of thicker SiO2 interfacial layer at the interface of CeO2 and Si for sample oxidized at 30 min, as per estimated using X-ray reflectivity analysis, has assisted in enhancing the J-Vg characteristic of the film. Detailed findings relating the structural and electrical properties of the samples were presented in this work.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

References

  1. S. Chaudhury, S. K. Sinha, in Advanced Nanomaterials, Nanoelectronics, Devices, Circuits and Systems, ed. By B. K. Kaushik (Elsevier, 2019), 375 https://doi.org/10.1016/B978-0-12-813353-8.00014-2

  2. J. Robertson, R. Wallace, Mater. Sci. Eng. R Rep. 88, 1 (2015)

    Article  Google Scholar 

  3. G.D. Wilk, R.M. Wallace, J.M. Anthony, High-k gate dielectrics: current status and materials properties considerations. J. Appl. Phys. 89, 5243–5275 (2001)

    Article  CAS  Google Scholar 

  4. A. Duba, V. Jaggi, A.K. Verma, A. Mishra, High-k oxides as an alternative gate oxide in CMOS technology and its corresponding effects - survey approach. Int. J. Eng. Res. 2, 732–739 (2013)

    Google Scholar 

  5. A. Bouazra, S. B. Nasrallah, M. Said, A. Poncet, Current tunnelling in MOS devices with Al2O3/SiO2 gate dielectric, Res. Lett. Phys. (2008) 1–5.

  6. S.D. Sakshi, A. Singh, Analyzing the effect of gate dielectric on the leakage currents. MATEC Web Conf. 57, 1–5 (2016)

    Article  CAS  Google Scholar 

  7. T. Janik, A. Jakubowski, B. Majkusiak, M. Korwin-Pawłowski, Comparison of gate leakage current components in metal-insulator-semiconductor structures with high-k gate dielectrics. J. Telecommun. Inf. Technol. 1, 65–69 (2001)

    Google Scholar 

  8. M. Houssa, M. Naili, C. Zhao, H. Bender, M.M. Heyns, A. Stesmans, Effect of O2 post-deposition anneals on the properties of ultra-thin SiOx/ZrO2 gate dielectric stacks. Semicond. Sci. Technol. 16, 31–38 (2000)

    Article  Google Scholar 

  9. A. Mutale, S.C. Deevi, E. Yilmaz, Effect of annealing temperature on the electrical characteristics of Al/Er2O3/n-Si/Al MOS capacitors. J. Alloys Compd. 863, 1–10 (2021)

    Article  CAS  Google Scholar 

  10. Y. Zhao, Design of higher-k and more stable rare earth oxides as gate dielectrics for advanced CMOS devices. Mater. 5, 1413–1438 (2012)

    Article  CAS  Google Scholar 

  11. S. Bengi, M.M. Bülbül, Electrical and dielectric properties of Al/HfO2/p-Si MOS device at high temperatures. Curr. Appl. Phys. 13, 1819–1825 (2013)

    Article  Google Scholar 

  12. V. Patil, K. Agrawal, A. Khairnar, B.J. Thibeault, P. Mahajan, Structural and electrical properties of ultra-thin high-k ZrO2 film on nitride passivated Ge(100) prepared by PEALD. Mater. Sci. Semicond. Process. 56, 277–281 (2016)

    Article  CAS  Google Scholar 

  13. R. Frunza, B. Kmet, M. Jankovec, M. Topic, B. Malic, Ta2O5-based high-k dielectric thin films from solution processed at low temperatures. Mater. Res. Bull. 50, 323–328 (2014)

    Article  CAS  Google Scholar 

  14. K. Agrawal, V. Patil, A. Khairnar, P. Mahajan, Preparation of rare earth CeO2 thin films using metal organic decomposition method for metal-oxide–semiconductor capacitors. J. Mater. Sci. Mater. Electron. 28, 1–6 (2017)

    Article  CAS  Google Scholar 

  15. H.J. Quah, Z. Hassan, F.K. Yam, N.M. Ahmed, M.A. MohdSalleh, K.A. Matori, W.F. Lim, Effects of ammonia-ambient annealing on physical and electrical characteristics of rare earth CeO2 as passivation film on silicon. J. Alloys Compd. 695, 3104–3115 (2017)

    Article  CAS  Google Scholar 

  16. P. Mahajan, A. Khairnar, B. Thibeault, Electrical properties of MOS capacitors formed by PEALD grown Al2O3 on silicon. Semiconductors 48, 497–500 (2014)

    Article  CAS  Google Scholar 

  17. H.J. Quah, K.Y. Cheong, Z. Hassan, Z. Lockman, F.A. Jasni, W.F. Lim, Effects of postdeposition annealing in argon ambient on metallorganic decomposed CeO2 gate spin coated on silicon. J. Electrochem. Soc. 157, H6–H12 (2010)

    Article  CAS  Google Scholar 

  18. W.-H. Kim, M.-K. Kim, W.J. Maeng, J. Gatineau, V. Pallem, C. Dussarrat, A. Noori, D. Thompson, S. Chu, H. Kim, Growth characteristics and film properties of cerium dioxide prepared by plasma-enhanced atomic layer deposition. J. Electrochem. Soc. 158, G169–G172 (2011)

    Article  CAS  Google Scholar 

  19. Y. Nishikawa, N. Fukushima, N. Yasuda, K. Nakayama, S. Ikegawa, Electrical properties of single crystalline CeO2 high-k gate dielectrics directly grown on Si (111). Jpn J Appl Phys. 41, 2480–2483 (2002)

    Article  CAS  Google Scholar 

  20. N.V. Skorodumova, S.I. Simak, B.I. Lundqvist, I.A. Abrikosov, B. Johansson, Quantum origin of the oxygen storage capability of ceria. Phys. Rev. Lett. 89, 1–4 (2002)

    Article  CAS  Google Scholar 

  21. Y. Zhao, J.-C. Grivel, Controlled growth of epitaxial CeO2 thin films with self-organized nanostructure by chemical solution method. Cryst. Eng. Comm. 15, 3816–3823 (2013)

    Article  CAS  Google Scholar 

  22. G. Djanovski, M. Beshkova, S. Velinova, D. Mollov, P. Vlaev, D. Kovacheva, K. Vutova, G. Mladenov, Deposition of CeO2 films on Si(100) substrates by electron beam evaporation. Plasma Process. Polym. 3, 197–200 (2006)

    Article  CAS  Google Scholar 

  23. Y. Nishikawa, T. Yamaguchi, M. Yoshiki, H. Satake, N. Fukushima, Interfacial properties of single-crystalline CeO2 high-k gate dielectrics directly grown on Si (111). Appl. Phys. Lett. 81, 4386–4388 (2002)

    Article  CAS  Google Scholar 

  24. F. Pagliuca, P. Luches, S. Valeri, Interfacial interaction between cerium oxide and silicon surfaces. Surf. Sci. 607, 164–169 (2013)

    Article  CAS  Google Scholar 

  25. L. Tye, N.A. El-Masry, T. Chikyow, P. McLarty, S.M. Bedair, Electrical characteristics of epitaxial CeO2 on Si (111). Appl. Phys. Lett. 65, 3081–3083 (1994)

    Article  CAS  Google Scholar 

  26. A.R.M. Zabidi, W.F. Lim, Formation of cerium oxide film via post-sputter oxidation of cerium in nitrogen/oxygen/nitrogen ambient. J. Alloys Compd. 851, 1–12 (2021)

    Google Scholar 

  27. Y. Zhu, N. Jain, M. Hudait, D. Maurya, R. Varghese, S. Priya, X-ray photoelectron spectroscopy analysis and band offset determination of CeO2 deposited on epitaxial (100), (110), and (111) Ge. J. Vac. Sci. Technol. B 32, 1–11 (2014)

    CAS  Google Scholar 

  28. A. R. M. Zabidi, Z. Hassan, W. F. Lim, Effect of post-sputter oxidation temperature on cerium thin films grown by DC sputtering method, Int. J. Nanotechnology (2021) - under review.

  29. S. Vangelista, R. Piagge, S. Ek, T. Sarnet, G. Ghidini, C. Martella, A. Lamperti, Structural, chemical and optical properties of cerium dioxide film prepared by atomic layer deposition on Tin and Si substrates. Thin Solid Films 636, 78–84 (2017)

    Article  CAS  Google Scholar 

  30. H.J. Quah, K.Y. Cheong, Z. Hassan, Z. Lockman, MOS characteristics of metallorganic-decomposed CeO2 spin-coated on Gan. Electrochem. Solid-State Lett. 13, H116–H118 (2010)

    Article  CAS  Google Scholar 

  31. K. Wang, Y. Chang, L. Lv, Y. Long, Effect of annealing temperature on oxygen vacancy concentrations of nanocrystalline CeO2 film. Appl. Surf. Sci. 351, 164–168 (2015)

    Article  CAS  Google Scholar 

  32. T. Nakamura, Y.-H. Ling, K. Amezawa, The effect of interstitial oxygen formation on the crystal lattice deformation in layered perovskite oxides for electrochemical devices. J. Mater. Chem. A 3, 10471–10479 (2015)

    Article  CAS  Google Scholar 

  33. D.N. Durgasri, T. Vinodkumar, B.M. Reddy, Facile synthesis of catalytically active CeO2-Gd2O3 solid solutions for soot oxidation. J. Chem. Sci. 126, 429–435 (2014)

    Article  CAS  Google Scholar 

  34. J. Pelleg, E. Elish, D. Mogilyanski, Evaluation of average domain size and microstrain in a silicide film by the Williamson-Hall method. Metall. Mater. Trans. A 36, 3187–3194 (2005)

    Article  Google Scholar 

  35. D. Ma, Z. Lu, Y. Tang, T. Li, Z. Tang, Z. Yang, Effect of lattice strain on the oxygen vacancy formation and hydrogen adsorption at CeO2 (111) surface. Phys. Lett. A 378, 2570–2575 (2014)

    Article  CAS  Google Scholar 

  36. A.S. Hassanien, A.A. Akl, A.H. Saaedi, Synthesis, crystallography, microstructure, crystal defects, and morphology of BixZn1-xO nanoparticles prepared by sol-gel technique. CrystEngComm 20, 1716–1730 (2018)

    Article  CAS  Google Scholar 

  37. S. Zhang, D. Sun, Y.Q. Fu, Y. Q, Q. Zhang, Effect of sputtering target power on preferred orientation in nc-tin/a-sin x nanocomposite thin films. J. Metastable Nanocryst. Mater. 23, 175–178 (2005)

    CAS  Google Scholar 

  38. J. Montero, C. Guillén, C. Granqvist, J. Herrero, G. Niklasson, Preferential orientation and surface oxidation control in reactively sputter deposited nanocrystalline SnO2: Sb films: Electrochemical and optical results. J. Solid State Sci. Technol. 3, 151–153 (2014)

    Article  CAS  Google Scholar 

  39. S.M. Chang, R.A. Doong, Interband transitions in sol−gel-derived ZrO2 films under different calcination conditions. Chem. Mater. 19, 4804–4810 (2007)

    Article  CAS  Google Scholar 

  40. R. López, R. Gómez, Band-gap energy estimation from diffuse reflectance measurements on sol–gel and commercial TiO2: a comparative study. J. Sol-Gel Sci. Technol. 61, 1–7 (2012)

    Article  CAS  Google Scholar 

  41. J.-P. Wang, Z.-Y. Wang, B.-B. Huang, Y.-D. Ma, Y.-Y. Liu, X.-Y. Qin, X.-Y. Zhang, Y. Dai, Oxygen vacancy induced band-gap narrowing and enhanced visible light photocatalytic activity of ZnO. ACS Appl. Mater. Interfaces 4, 4024–4030 (2012)

    Article  CAS  Google Scholar 

  42. M. Tang, J.-X. Shang, Y. Zhang, Oxygen vacancy and doping atom effect on electronic structure and optical properties of Cd2SnO4. RSC Adv. 8, 640–646 (2018)

    Article  CAS  Google Scholar 

  43. E. Wuilloud, B. Delley, W.D. Schneider, Y. Baer, Spectroscopic evidence for localized and extended f-symmetry states in CeO2. Phys. Rev. Lett. 53, 202–205 (1984)

    Article  CAS  Google Scholar 

  44. P.R.L. Keating, D.O. Scanlon, B.J. Morgan, N.M. Galea, G.W. Watson, Analysis of intrinsic defects in CeO2 using a Koopmans-like GGA+U approach. J. Phys. Chem. C 116, 2443–2452 (2012)

    Article  CAS  Google Scholar 

  45. C.W.M. Castleton, J. Kullgren, K. Hermansson, Tuning LDA+U for electron localization and structure at oxygen vacancies in ceria. J. Chem. Phys. 127, 1–11 (2007)

    Article  CAS  Google Scholar 

  46. Y.C. Zhang, Z. Li, L. Zhang, L. Pan, X.W. Zhang, L. Wang, F. Aleem, J.J. Zou, Role of oxygen vacancies in photocatalytic water oxidation on ceria oxide: experiment and DFT studies. Appl. Catal. B Environ. 224, 101–108 (2018)

    Article  CAS  Google Scholar 

  47. T. Montini, M. Melchionna, M. Monai, P. Fornasiero, Fundamentals and catalytic applications of CeO2-based materials. Chem. Rev. 116, 5987–6041 (2016)

    Article  CAS  Google Scholar 

Download references

Funding

This work is financially supported by the Universiti Sains Malaysia for USM Short Term Grant with Project code: 304/CINOR/6315289.

Author information

Authors and Affiliations

Authors

Contributions

Way Foong Lim: conceptualization, methodology, writing, fund acquisition

Ainita Rozati Mohd Zabidi: sample preparation, data collection

Corresponding author

Correspondence to Way Foong Lim.

Ethics declarations

Conflict of interest

The authors declare competing interests.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Lim, W.F., Zabidi, A.R.M. Effects of oxidation time on the formation of nanosized cerium oxide film from direct current sputtered cerium. emergent mater. 5, 41–49 (2022). https://doi.org/10.1007/s42247-022-00370-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s42247-022-00370-2

Keywords

Navigation