Silicon is easy available material on the Earth’s crust, and it has been maximum used in theelectronic industry. Silicon presents high conversion efficiency, in comparison with the solar cell cost and also this technology has an important role to continue reduce the cost.
This technology has been installed during from a long time and the installations have shown silicon technology allows for long and stable outdoors. The efficiency of the solar cells has also improved since the diffused p-n junction was reported. The first cells fabricated with Si p-type base achieved efficiency meanwhile Si n-type base solar cells presented higher efficiencies.
Initially due to radiation problems for space applications with the n-type solar cells, p-type silicon with a phosphorus-doped emitter solar cells were anew developed. The result for a single junction silicon solar cell under one sun illumination is around 29%.
Due to new fabrication steps and new characterization tools Cell becomes more advantageous. In recent years, several technologies as texturization, double-screen-printing, ion-implanting, selective emitters, wrap-through emitter and contacts, and rear-surface passivation have been included in the commercial fabrication processes
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