Arsenic solar abundance

Cells made from GaAs are more costly than silicon cells, because the production process is not as well developed, and gallium and arsenic are not abundant materials. GaAs cells have been used when very high efficiency is needed regardless of cost such as required in space applications. They were also used in the Sunraycer, a photovoltaic-powered electric car, which won the Pentax World Solar Challenge race for solar-powered vehicles in 1987. It ran the 3000-km from Darwin to Adelaide, Australia at an average day time speed of 66-km per hour. The 1990 race was won by a... 

Nitrogen is the most abundant pnictide element in the solar system, in the sea, in the air, in the soil and in living organisms. It does, however, appear to take second place to phosphorus in the earth s crustal rocks (Table 2.4). The remaining pnictide elements, arsenic, antimony and bismuth, are all present in considerably smaller quantities than either nitrogen or phosphorus in all these media (Tables 2.2 and 2.5). 

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