GaAs photovoltaic panel technology

Can a single-junction GaAs photovoltaic cell be fabricated on a detachable substrate?

Single-junction GaAs photovoltaic cells fabricated on porosified 100 mm Ge wafers match and surpass the state-of-the-art GaAs solar cells fabricated on detachable substrates, according to Darnon's statement, demonstrating the transformative potential of growing high-efficiency optoelectronic devices on detachable Ge films.

What is a cross-sectional view of a GaAs PV cell on a SEM microscope?

The images show cross-sectional view of the GaAs PV cell on a SEM microscope. The image ) shows the complete structure of the PV cell. Contacts are visible from below and from top (contact is longitudinal along the edge). The largest part of the picture is occupied by germanium. However, the most important are the thin layers (the darkest part).

How efficient is GaAs based thin-film technology?

GaAs-based thin-film technology is over 50 years old and constantly evolving. To date, no successful challenger has been found to achieve such a high efficiency, which currently stands at 47.1% with the concentrator.

Can a GaAs cell be miniaturized?

Even here, there is a current development for excellent efficiency, hybridization, or miniaturization. Miniaturization of concentrators can be used (and already is used) in space technologies, where GaAs cells make the most sense in terms of their good resistance to radiation and their ability to withstand very high-temperature fluctuations.

Do photovoltaic technologies need a renewed assessment?

Nature Reviews Materials 4, 269–285 (2019) Cite this article The remarkable development in photovoltaic (PV) technologies over the past 5 years calls for a renewed assessment of their performance and potential for future progress.

Do high-performance GaAs devices require a surface finish?

However, high-performance GaAs devices require a surface finish measuring nanometers, and only minimum subsurface damage is tolerated during the fabrication process; this inevitably results in greater demands for process control capabilities during the fabrication processes. ...