Microfabrication and characterization of gadolinium oxide (Gd2O3) based photodetector

Sönmez K. B., Yıldız D. E., Hussaini A. A., Büyükbal E. S., Yıldırım M., BİLGE OCAK S.

Sensors and Actuators A: Physical, cilt.394, 2025 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 394
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.sna.2025.116900
  • Dergi Adı: Sensors and Actuators A: Physical
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Gadolinium Oxide, Schottky photodetector, UV-Vis-NIR
  • Gazi Üniversitesi Adresli: Evet

Özet

Gadolinium Oxide (Gd₂O₃)-based photodetectors have garnered significant attention owing to their exceptional electrical and optical characteristics, establishing them as promising candidates for next-generation optoelectronic devices. In this study, a Gd2O3-based Schottky photodetector was fabricated, and its electrical, optical, and structural characteristics were systematically examined. Gd2O3 nanoparticles were successfully characterized via XRD, SEM, and SEM-EDS. Remarkably, the device achieved a high specific detectivity and external quantum efficiency under 351–1600 nm wavelengths, demonstrating its potential for high-performance UV-Vis-NIR photodetection applications. Notably, the fabricated device has shown a detectivity and external quantum efficiency of 2.64 × 109 Jones and 11.86 % at 351 nm, respectively. These results underscore the significant promise of Gd2O3-based photodetectors for next-generation optoelectronic devices, paving the way for their integration into cutting-edge sensing and imaging technologies.