ashrafoukasha

Dr. Ashraf Oukasha Abd El-latif

Assistant Professor - Associate Professor (Insect Physiology), Department of Plant Protection

Faculty of agriculture

Address: Faculty of Agriculture, Sohag Universiy, Sohag, Egypt

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Publications Which contain the keyword: cell efficiency

Theoretical study of ZnS/CdS bi-layer for thin-film CdTe solar cell

2018-09-02 13:10:32 Keywords ITO/ZnS/CdS/CdTe solar cell, optical losses, recombination losses, short-circuit current, cell efficiency,
Theoretical study of ZnS/CdS bi-layer for thin-film CdTe solar cell
The performance of CdTe solar cells is strongly limited by the thickness of CdS window layer.A higher short-circuit current density might be achieved by decreasing the thickness of CdS layer as a result of reducing the absorption losses that take place in this layer. However, it is difficult to obtain uniform and pin-hole free CdS layers thinner than 50 nm. ... Read more

Quantitative assessment of electrical, optical and recombination losses in heterojunction CdS/CdTe solar cells

2018-09-02 13:14:51 Keywords CdS/CdTe solar cell, optical losses, recombination losses, Electrical losses, cell efficiency,
Quantitative assessment of electrical, optical and recombination losses in heterojunction CdS/CdTe solar cells
In this paper, electrical, optical and recombination losses in thin-film solar cells passed on CdS/CdTe have been evaluated. Electrical losses due to series and shunt resistances are quantitatively estimated from J-V curves. J-V characteristics are described in terms of the Sah– Noyce–Shockley theory of generation–recombination in the space-charge region of the CdS/CdTe heterostructure. Optical losses due to multiple reflections from ... Read more

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