Effect of fluorine doping on the improvement of electrical and photocatalytic properties of ZnO films


KARAKAYA S., Kaba L.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, vol.130, no.3, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 130 Issue: 3
  • Publication Date: 2024
  • Doi Number: 10.1007/s00339-024-07312-1
  • Journal Name: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex
  • Keywords: F-doped ZnO, Hall effect, Methylene blue, Photocatalytic, USP technique
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

ZnO:F thin films were produced by ultrasonic spray pyrolysis (USP) technique. For photovoltaic and photocatalytic applications, the properties of ZnO films have been tried to be improved by adding the flourine (F) element. The average optical transmittance was higher than 85%. Photoluminescence (PL) spectra depict blue, green and yellow emission in deposited films. Photocatalytic activity of ZnO and ZnO:F thin films was evaluated with methylene blue (MB) organic pollutant under UV irradiation. 5% doped ZnO:F film successfully decomposed similar to 80% using MB as photocatalyst. The lowest resistivity (3.54 x 10(-3) Omega cm), high carrier concentration (2.52 x 10(20) cm(-3)) and high hall mobility (8.28 cm(2)V(-1) s(-1)) were observed in ZnO:F (5%) film. With this study, it was concluded that F-doped ZnO films were effective in the degradation of MB, which is widely used in the food and pollutant industries. Therefore, it makes ZnO:F films a promising material in both optoelectronic and photocatalytic applications due to their optimum properties.