Performance evaluation of p-NiO/n-FTO heterojunction UV photodetector
Year: 2025
Type: conference-paper
Abstract: Nanostructure-based optoelectronic applications are being widely demonstrated for practical applications including UV photodetectors. The latter is considerably significant in the current world for a number of applications including biological analysis and environmental monitoring. This article depicts working procedure through which p-NiO/n-FTO heterojunction UV photodetector is fabricated along with its photo-responsive performance evaluation. The surface topographies demonstrated the existence of nanoparticle diameter of 75 nm, while a cut-off wavelength along optical bandgap of 348 nm and 3.56 eV were attained via the optical analysis, respectively. Further, the photo-responsive analysis of the fabricated photodetector exhibited diode-like behavior along ideality factor (n) of 4.56. In conjunction, the attained photo-current (Iph ) demonstrated linear relation along with the illumination power (R2 = 0.965). The photo-responsivity (Rλ ) and photo-detectivity (D* ) delivered values of 0.021 (A/W) and 3.57 × 1014 Jones at 6 mW/cm2 , respectively. The time-resolved profile exhibited a stable On/Off behavior along response/recovery time of 240 and 320 ms., respectively. The proposed geometry offers a considerably cost-effective pathway for stable and fast response optoelectronic design.
Authors: Ethar Yahya Salih, Yasir Jaafar Jameel, Ammar Waleed Saeed, Mohammed Ali Hassan Al-Beayaty, Mohammed Dawood Salman, Maad A. Hussein
Institution: University Of Fallujah
Language: English
Topic: ZnO doping and properties
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4410230898