Power beaming with c-si photovoltaic cells

Date

2025-3-13

Author

Açıkgöz, Şafak Vacit

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Transferring energy wirelessly has long been a dream of humanity. One popular way in the past few years is power beaming which can be defined as transferring energy wirelessly via electromagnetic radiation. It can be used for many applications: Unmanned aerial vehicles (UAV) that do not need to land for refueling, electric cars that do not need recharging, providing electricity to remote areas without the costly infrastructure, biomedical devices that can work wirelessly. There are various wavelengths to choose for a power source and different types of receivers. Infrared is advantageous in the long range for having a well collimated beam and having an atmospheric window. The present studies focus on GaAs or other costly III-V materials not common in the industry. However, silicon is a more widely accessible, economic and abundant material which is well-studied, making it a favorable receiver material choice. The present industrial infrastructure of silicon solar cells makes it economically feasible to produce photovoltaic (PV) receivers on a large scale. This study aims at building a wavelength-tunable fiber laser in the range 1030- 1080 nm that can provide more than 50 W of optical power for harvesting energy with a PV receiver from a monochromatic light source, laser beam. For the characterization of the PV receivers, a custom built current-voltage (IV) measurement system has been designed and characterized by their efficiency at maximum power points (MPP) under different illuminations. Optimization on vi different monofacial and bifacial Passivated Emitter and Rear Contact (PERC) cells was done by simulation. They were fabricated and experimented with along Interdigitated Back Contact (IBC) cells. The goal was to find the optimal beam parameters and the receiver PV cell design with the highest efficiency.

Subject Keywords

Power beaming, Wireless energy transmission, Solar cell, Crystalline silicon (c-si) photovoltaic elements

URI

https://hdl.handle.net/11511/114113

Collections

Graduate School of Natural and Applied Sciences, Thesis