Scopus
YÖKSİS Eşleşti
Self-powered narrowband near-infrared photodetector based on polyoxometalate compound
Optical Materials · Ağustos 2025
YÖKSİS Kayıtları
Self-powered narrowband near-infrared photodetector based on polyoxometalate compound
Optical Materials · 2025 SCI-Expanded
PROFESÖR MURAT YILDIRIM →
Makale Bilgileri
DergiOptical Materials
Yayın TarihiAğustos 2025
Cilt / Sayfa165
Scopus ID2-s2.0-105004873219
Özet
Narrowband photodetectors are employed in optical communication, where designated wavelengths are used to transmit data, and in environmental sensing to identify specific gases that absorb distinct wavelengths of light. In this study, we developed a novel polyoxometalate compound for application as a near-infrared (NIR) photodetector. Li<inf>6</inf> [α-P<inf>2</inf>W<inf>18</inf>O<inf>62</inf>]<sup>-</sup>.28H<inf>2</inf>O compound was synthesized successfully and was characterized using <sup>31</sup>P NMR, FT-IR, UV–Vis, C–V, SEM, TEM, and AFM. We used Li<inf>6</inf> [α-P<inf>2</inf>W<inf>18</inf>O<inf>62</inf>]<sup>-</sup>.28H<inf>2</inf>O compound as interlayer in Schottky type photodetector structure. Photodiode and photodetector measurements were performed under various solar intensities (20, 40, 60, 80, and 100 mW), ultraviolet, visible, and near-infrared wavelengths ranging from 351 to 1600 nm. Notably, the device exhibited an excellent responsivity, external quantum efficiency, and detectivity under near-infrared wavelengths. It showed 64.17 mA/W responsivity, 4.34 × 10<sup>10</sup> Jones detectivity and 7.96 % external quantum efficiency at 1000 nm and 0 bias voltage. Moreover, the device demonstrated 4.736 A/W responsivity and 8.57 × 10<sup>11</sup> Jones detectivity under solar light. Furthermore, this research introduces a novel compound for developing narrowband photodetectors utilizing polyoxometalate.
Yazarlar (5)
1
Ali Akbar Hussaini
ORCID: 0000-0002-7128-9994
2
Yasemin Torlak
3
Sumeyra Buyukcelebi
4
Mahmut Kuş
5
Murat Yıldırım
Anahtar Kelimeler
NIR
Photodetector
Polyoxometalate
Kurumlar
Konya Technical University
Konya Turkey
Pamukkale Üniversitesi
Denizli Turkey
Selçuk Üniversitesi
Selçuklu Turkey