What is the difference between Hydrogenated amorphous Silicon Germanuim(a-SiGe:H) and Hydrogenated amorphous silicon(a-Si:H) in terms of cost and ease of fabrication in solar cells ?
I think hydrogenated a-Si is more economical than the hydrogenated a-SiGe since SiH4 source is readily available than GeH4 source. The fabrication of both is the same since it is based on the pyrolysis of SiH4 and GeH4 simultaneously in the same deposition reactor.
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I think hydrogenated a-Si is more economical than the hydrogenated a-SiGe since SiH4 source is readily available than GeH4 source. The fabrication of both is the same since it is based on the pyrolysis of SiH4 and GeH4 simultaneously in the same deposition reactor.
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Please can u send me more details about the two materials and what is the most effective material
Yes Boumediene
welcome again,
The hydrogenated a-Si is an already commercialized solar cells as thin film amorphous silicon. I do not know if hydrogenated a-SiGe is commercialized or not.
The advantage of using SiGe is the smaller energy gap and hence it can collect more radiation and increase the photoconversion efficiency of the solar cells.
Both cells can be used also in conjunction with the lower bandgap material as Germanium to build multijunction cells.
I found the attached paper useful for you and you can get good idea about the two materials. However you can google your self by the suitable keywords and get many literature about the two materials and their utilization in solar cells. Article Thin-film amorphous silicon germanium solar cells with p- an...
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