中国物理B ›› 2020, Vol. 29 ›› Issue (8): 80702-080702.doi: 10.1088/1674-1056/ab90e6

• SPECIAL TOPIC—Ultracold atom and its application in precision measurement • 上一篇    下一篇

Structural and optical characteristic features of RF sputtered CdS/ZnO thin films

Ateyyah M Al-Baradi, Fatimah A Altowairqi, A A Atta, Ali Badawi, Saud A Algarni, Abdulraheem S A Almalki, A M Hassanien, A Alodhayb, A M Kamal, M M El-Nahass   

  1. 1 Department of Physics, Faculty of Science, Taif University, Taif 21974, Saudi Arabia;
    2 Department of Physics, Faculty of Education, Ain Shams University, Roxy 11757, Cairo, Egypt;
    3 Department of Chemistry, Faculty of Science, Taif University, Taif, Saudi Arabia;
    4 Department of Physics, College of Science and Humanities-Al Quwaiiyah, Shaqra University, Saudi Arabia;
    5 Research Chair for Tribology, Surface, and Interface Sciences, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
    6 Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
  • 收稿日期:2020-03-27 修回日期:2020-04-26 出版日期:2020-08-05 发布日期:2020-08-05
  • 通讯作者: Ateyyah M Al-Baradi E-mail:thobyani@yahoo.com
  • 基金资助:

    Project supported by the Deanship of Scientific Research, Taif University, Kingdom of Saudi Arabia (Grant No. 1-440-6136).

Structural and optical characteristic features of RF sputtered CdS/ZnO thin films

Ateyyah M Al-Baradi1, Fatimah A Altowairqi1, A A Atta1,2, Ali Badawi1, Saud A Algarni1, Abdulraheem S A Almalki3, A M Hassanien4, A Alodhayb5, A M Kamal6, M M El-Nahass2   

  1. 1 Department of Physics, Faculty of Science, Taif University, Taif 21974, Saudi Arabia;
    2 Department of Physics, Faculty of Education, Ain Shams University, Roxy 11757, Cairo, Egypt;
    3 Department of Chemistry, Faculty of Science, Taif University, Taif, Saudi Arabia;
    4 Department of Physics, College of Science and Humanities-Al Quwaiiyah, Shaqra University, Saudi Arabia;
    5 Research Chair for Tribology, Surface, and Interface Sciences, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
    6 Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
  • Received:2020-03-27 Revised:2020-04-26 Online:2020-08-05 Published:2020-08-05
  • Contact: Ateyyah M Al-Baradi E-mail:thobyani@yahoo.com
  • Supported by:

    Project supported by the Deanship of Scientific Research, Taif University, Kingdom of Saudi Arabia (Grant No. 1-440-6136).

摘要:

In this study, CdS/ZnO (2:3 mol%) thin films are successfully deposited on quartz substrates by using the sputtering technique. Good images on the structural and optical characteristic features of CdS/ZnO thin films before and after annealing are obtained. The CdS/ZnO thin films are annealed respectively at temperatures of 373 K, 473 K, and 573 K and the structural features are examined by XRD, ATR-FTIR, and FESEM. The optical properties of CdS/ZnO thin films such as refractive indices, absorption coefficients, optical band gap energy values, Urbach energy values, lattice dielectric constants, and high frequency dielectric constants are determined from spectrophotometer data recorded over the spectral range of 300 nm-2500 nm. Dispersion parameters are investigated by using a single-oscillator model. Photoluminescence spectra of CdS/ZnO thin films show an overall decrease in their intensity peaks after annealing. The third-order nonlinear optical parameter, and nonlinear refractive index are also estimated.

关键词: CdS/ZnO, thin films, structural &, optical properties

Abstract:

In this study, CdS/ZnO (2:3 mol%) thin films are successfully deposited on quartz substrates by using the sputtering technique. Good images on the structural and optical characteristic features of CdS/ZnO thin films before and after annealing are obtained. The CdS/ZnO thin films are annealed respectively at temperatures of 373 K, 473 K, and 573 K and the structural features are examined by XRD, ATR-FTIR, and FESEM. The optical properties of CdS/ZnO thin films such as refractive indices, absorption coefficients, optical band gap energy values, Urbach energy values, lattice dielectric constants, and high frequency dielectric constants are determined from spectrophotometer data recorded over the spectral range of 300 nm-2500 nm. Dispersion parameters are investigated by using a single-oscillator model. Photoluminescence spectra of CdS/ZnO thin films show an overall decrease in their intensity peaks after annealing. The third-order nonlinear optical parameter, and nonlinear refractive index are also estimated.

Key words: CdS/ZnO, thin films, structural &, optical properties

中图分类号:  (Scanning probe microscopes and components)

  • 07.79.-v
73.61.-r (Electrical properties of specific thin films)