NO CALCULATIONS, CONCEPT ONLY; PLEASE EXPLAIN, SOLAR CELLS AND SEMI CONDUCTOR EC
ID: 2248215 • Letter: N
Question
NO CALCULATIONS, CONCEPT ONLY; PLEASE EXPLAIN, SOLAR CELLS AND SEMI CONDUCTOR ECE
1. A basic solar cell typically includes a pn junction for which the doping and thickness of each side of the junction is very asymmetric. In the case of a GaAs solar cell, a common design can be an n+/p junction in which the n+ region is doped to a concentration of 5x1018 cm3 and is 0.1 microns thick and the p type side of the junction is lightly doped at a concentration of5x1016 cm3 and the p-type region is a layer that is 3 microns thick. (a). Assuming that only band-band (radiative) recombination and Shockley-Read-Hall (SRH) recombination processes exist for this solar cell, which of these two do you expect to be dominant for the emitter and the base of the solar cell and why? You should be able to figure this out without a calculation!Explanation / Answer
Solar cell is a device which can convert light energy into electrical energy.They are nothing but a single layer of p-n junction diode: this is the first generations.
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