Self-powered high-performance UV-vis-IR hybrid photovoltaic photodetector based on<i> Epilobium</i><i> angustifolium</i> L. (Onagraceae)

YILDIRIM F., KARAKAYA S., YUCA H., İNCEKARA Ü., AYDOĞAN Ş.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.979, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 979
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.jallcom.2024.173584
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Public Affairs Index, Civil Engineering Abstracts
  • Anahtar Kelimeler: Detectivity, Epilobium angustifolium, Organic-inorganic photodetector, Self-powered
  • Atatürk Üniversitesi Adresli: Evet

Özet

Water-soluble Epilobium angustifolium (EA) extract was successfully coated on n -type Si single crystal by spin coating method to obtain EA/n-Si heterojunction device. UV-vis absorption and SEM analysis of the EA film were performed and the optical band gap was calculated as 2.71 eV. Electro-optical measurements of the fabricated device were performed and was found to give very good photoresponse in the UV-vis-IR regions. According to the experimental results, the EA/n-Si heterojunction showed not only high-performance photodetector properties but also self-driven properties under visible light as well as under UV and IR lights. At 150 mW/cm2 visible light, the device demonstrated excellent photovoltaic properties with Voc and Isc values of 0.40 V and 4.65 A, respectively. Under IR light, the responsivity, specific detectivity and NPDR reached 0.65 A/W and 1.41 x 1012 Jones, 4.23 x 108 W-1 respectively. Finally, a high-performance organic/inorganic photodetector in the broadband range has been successfully fabricated.