Self-powered high-performance UV-vis-IR hybrid photovoltaic photodetector based on<i> Epilobium</i><i> angustifolium</i> L. (Onagraceae)
Yildirim, Fatma, Karakaya, Songuel, Yuca, Hafize, Incekara, Uemit, Aydogan, Sakir
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.
- Journal
- JOURNAL OF ALLOYS AND COMPOUNDS
- Year
- 2024
- Volume
- 979
- ISSN
- 0925-8388
- eISSN
- 1873-4669
- DOI
- 10.1016/j.jallcom.2024.173584
- WoS UID
- WOS:001170733400001