Engineering the visible light absorption of one-dimensional photonic crystals based on multilayers of Al-doped ZnO (AZO) thin films

ATILGAN A., ÖZEL K., Sbeta M., YILDIZ A.

Materials Science in Semiconductor Processing, cilt.166, 2023 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 166
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1016/j.mssp.2023.107747
  • Dergi Adı: Materials Science in Semiconductor Processing
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex
  • Anahtar Kelimeler: AZO, Multilayer, One dimensional photonic crystals, Spin-coating, Visible light
  • Ankara Üniversitesi Adresli: Evet

Özet

One-dimensional (1D) photonic crystals (PCs) are difficult to construct since there are several variations with different refractive indices. Herein we propose a fast and reliable method for constructing 1D PCs consisting of spin-coating multilayers of Al-doped ZnO (AZO) thin films without the use of any alternating periodic structure. By adjusting the spin-coating speed (SCS) and spin-acceleration time (SAT) during the deposition, it is convincingly proved here that visible light absorption in PCs can be easily engineered. The SCS and SAT are capable of readily controlling and modifying the stop-band position. With varying SAT, the stop-band position is moved from blue to red. The stop-band position of the PCs presented may be precisely adjusted with the proper SCS and SAT values, demonstrating a considerable potential to replace the current methods. Finally, the proposed PCs might be considered for some applications such as sensors, optical filters, and waveguides.