Solar and infrared light sensing comparison of Yb/CIGS photodiode

Yavru C. A., KALELİ M., ÜNCÜ İ. S., KOÇ M., ALDEMİR D. A.

Sensors and Actuators A: Physical, cilt.347, 2022 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 347
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.sna.2022.113973
  • 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, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: CIGS, Detectivity, Electrical properties, Rare earth metals, Responsivity, Schottky photodiodes
  • Isparta Uygulamalı Bilimler Üniversitesi Adresli: Evet

Özet

Glass/Mo/CIGS/Yb Schottky photodiodes were fabricated by the physical vapor deposition method. The structural and morphological characterization of the CIGS layer on Mo was carried out. The current-voltage (I-V) characteristics were investigated in the dark, under solar light, and infrared. The diodes' ideality factor and zero bias barrier height were calculated as 1.55 and 0.84 eV in the dark, respectively. When the time-dependent current plots are examined, it is seen that the rise and decay times are lower for solar light than infrared. As the intensity of solar light increases, the rise and decay times decrease. The responsivity value for 100 mW/cm2 solar light was found to be 8.5 mA/W and the detectivity value was 1.7 × 107 Jones. For infrared light, the same parameters were calculated as 3.4 mA/W and 7.1 × 106 Jones. Furthermore, capacitance-voltage and conductance-voltage characteristics were evaluated for different frequencies.