Jun 1, 2024 · Three Samples of ZnO Nanoparticles are synthesized and confirmed by XRD analysis. Bandgap energies, Urbach energies, and Refractive indexes are analyzed by UV–visible absorbance data. Five Size estimation models were employed for size determination. One-way ANOVA variation is observed among the estimation methods.

Nov 8, 2017 · This study demonstrates significant visible light photo-detection capability of pristine ZnO nanostructure thin films possessing substantially high percentage of oxygen vacancies (V o s) and zinc...

Jan 1, 2025 · This paper highlights the capabilities of ZnO Nanowires in UV photodetectors, positioned at the intersection of visible blindness, flexibility, and biocompatibility. The ZnO nanostructures exhibit high UV selectivity while maintaining mechanical flexibility and integration with biocompatible materials.

Recently, ZnO-based UV photodetectors show good responsivity, high UV/visible contrast ratio, high speed and low noise characteristics, and show the tunability of the detection edge from 380 nm to 225 nm just by varying the Mg mole fraction.

May 31, 2019 · This work presents a synthesis of vertically aligned and uniform ZnO nanowires/nanorods (NWs/NRs) for the fabrication of ultraviolet (UV) photodetectors. ZnO was grown on Zn seed layer substrates by chemical vapor deposition (CVD) technique. The glass substrates were seeded with Zn at different deposition temperatures.

Feb 14, 2024 · In addition, Cu-doped ZnO and pure ZnO metal–semiconductor-metal photodetector, with Cu as electrode contacts were successfully produced for ultraviolet (UV) detection. The I-V (current–voltage) characteristics were used to study the sensing enhancement.

Apr 9, 2024 · W-doped ZnO thin films deposited on Si substrates with (100) orientation by sol–gel spin coating method at temperature 500 °C. W/Zn atomic ratio varies from 0% to 4%. Then, the UV detection performance analysis of p–n heterojunction UV photodetectors based on W-doped ZnO/Si is analyzed. The current–voltage curves of W-doped ZnO/Si are ...

3 days ago · This work explores the synthesis and characterization of undoped ZnO, Ga-doped ZnO (Ga:ZnO), and γ-Ga2O3 quasi-spherical nanoparticles and their catalytic activity in Rhodamine B photodegradation under UV–visible light exposure. Gallium dopant incorporation into Ga:ZnO was confirmed by inductively coupled plasma optical emission spectroscopy (ICP-OES), Fourier transform infrared (FT-IR ...

Mar 13, 2025 · UV light leads to quasi-Fermi energy level splitting in ZnO, which reduces the net carrier transfer in the CEJ, and thus, the output performance of CE decreases. In addition, the photorelaxation phenomenon occurs in CE after illumination, and this phenomenon is related to the recombination rate of photocarriers, demonstrating the ...

UV–Vis studies show that ZnO nanoparticles have a relatively small band gap of 2.75 eV, as estimated by Tauc plot. The photodegradation activity tests using synthesized green ZnO NPs showed that approximately 79% of CV dye is decomposed in 2 h after being exposed to UV irradiation under experimentally studied conditions. The ...