The behavior of a photovoltaic solar array is investigated by performing a simulation in Simulink (MATLAB). The modeling of the system is based on the one diode model (in which the solar cell’s equivalent circuit is composed by a current source, diode, series and parallel resistance). The simulation results show how the series and parallel connection of the solar cells have a direct impact unde...

Periodically aligned Si nanopillar (PASiNP) arrays were fabricated on Si substrate via a silver-catalyzed chemical etching process using the diameter-reduced polystyrene spheres as mask. The typical sub-wavelength structure of PASiNP arrays had excellent antireflection property with a low reflection loss of 2.84% for incident light within the wavelength range of 200-1,000 nm. The solar cell inc...

Optical wireless power transmission (OWPT) has been a promising solution for remote supply, eliminating the need cables or batteries. In this paper, we propose light emitting diode (LED) array based OWPT system with improved efficiency and compact dimension. experiment, proposed four-LED-array collimation scheme achieved lens as high 70%, while obtaining an electrical of 0.8 W from 50 × mm2 GaA...

The characterisation of 85 rear-line-contacted silicon concentrator solar cells on one single wafer requires a fast, automated measurement system. In this paper an easy to use needle array measurement system is presented, which allows an automated sequential measurement of dark and light IV curves of all cells on one wafer. For acquiring IV curves under high illumination levels (up to 500 suns)...