This study discussed a surface processing technique for improving the energy conversion rate of solar cells with silicon as the substrate. The technique involves texturing the surface of a silicon substrate and coating it with an antireflective layer to enhance its antireflective property and thereby its photoelectric conversion efficiency.
RFMS combined with E & I method provides a new preparation process for perovskite solar cells in which high-quality films are used. The cells were kept open circuit under illumination of 14 W fluorescent lamps with a distance of 2.5 m to the light source in ambient air over 60 days (1440 h) with an unsealed dish.
Solar Energy Harvesting System PV cells, also known as photovoltaic cells, can be fabricated using countless methods and materials. Despite their variations, their fundamental purpose remains consistent: capturing solar energy and transforming it into electricity that can be utilized.
The photovoltaic performance of the flexible solar cells still can be evaluated up to 300 cycles bending indicating the suitability for roll to roll processing. Additionally, large active area (40 × 40 mm 2) devices were also fabricated via this new strategy and a PCE of 4.8% was obtained.
The RF sputtering processes were performed in pure Ar gas (99.999%). The gas flow rate of Ar was controlled by a mass-flow controller and the chamber was kept at a working pressure of 3.5 Pa. In order to clean the target surface, a pre-sputtering process was introduced for 10 min before the deposition.
Based on Figure 8, it is clear that the RF energy harvesting circuit attains a peak PCE of 55.14% at the operating frequency of 919 MHz when the input power is at 12 dBm. It is calculated with the aid of Equations (1) and (2). = Input power from solar cell and battery.