Abstract
Solar cells are now widely used as a clean method for electric energy generation. Among various type of solar cells, we compared the ability between amorphous and tandem (amorphous and polycrystalline) silicon solar cells by means of simultaneous running test. This kind of comparison is of importance practically, because the comparison of only inherent characteristics cannot include environmental parameters such as temperature totally. It was concluded that both types of solar cells provided almost the same energy for one year. The amorphous silicon solar cell provided more energy in summer while the tandem solar cell was advantageous in winter. It is due to the fact that the decrease in energy conversion at the higher cell temperature is more noticeable in tandem solar cells.
Highlights
Solar cells are quite attractive to generate electricity without any environmental disturbance such as thermal or atomic power generation of electricity [1] [2]
The amorphous silicon solar cell provided more energy in summer while the tandem solar cell was advantageous in winter
The tandem solar cells consist of two layers of amorphous silicon and polycrystalline silicon for the purpose of the absorption of light in the wider spectral range than that with one kind. There is another type of a tandem solar cell that consists of an amorphous silicon layer and a micro-crystalline silicon layer [6]
Summary
Solar cells are quite attractive to generate electricity without any environmental disturbance such as thermal or atomic power generation of electricity [1] [2]. In the silicon-based solar cells, there are three types of solar cells: polycrystalline, amorphous and tandem solar cells. The tandem solar cells consist of two layers of amorphous silicon and polycrystalline silicon for the purpose of the absorption of light in the wider spectral range than that with one kind. There is another type of a tandem solar cell that consists of an amorphous silicon layer and a micro-crystalline silicon layer [6]. We tried the running test through one year on the two kinds of silicon-based solar cells: amorphous and tandem solar cells. We discuss the difference of properties of the two kinds of solar cells from the viewpoint of practical use
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