ABSTRACT
The article describes the experimental measurements made at a low-voltage residential and educational power substation, in a point of common coupling. Two groups of experiments were carried out, in normal conditions and during the COVID-19 pandemic. Measurements were made using a power quality analyzer and include phase RMS voltages and line currents, total harmonic distortion and unbalance of phase voltages and line currents, neutral current, active, reactive and apparent powers, power factors and displacement power factors, Fresnel diagrams, and harmonic spectra. Measurements indicate significant differences of power quality indicators between the two measurement groups. © 2023 IEEE.
ABSTRACT
This letter reports facile hydrothermally synthesized colloidal MoS<sub>2</sub> quantum dots (QDs) based inexpensive solution processed metal-semiconductor-metal (MSM) photodetector (PD) with device structure Au/MoS<sub>2</sub> QDs/Au on Si/SiO<sub>2</sub> substrate to observe the ~275 nm deep UV radiation used in SARS-CoV-2 virus inactivation. The ligand exchange technique has been used thereby, reducing inter QDs distance for better film quality. Under deep UV exposure (275 nm), the fabricated MSM PD displays good responsivity (343.53 mA/W), external quantum efficiency (EQE) (154.9 %), and detectivity (2.51 ×1011Jones) values. The time response analysis under deep UV irradiation ~275 nm demonstrates adequate rise time (81.17 ms) and fall time (79.58 ms). IEEE