Three-terminal ternary iii-v multicolor solar cells and...

Details Three-terminal ternary iii-v multicolor solar cells and... Three-terminal ternary iii-v multicolor solar cells and...

H - Electricity

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H01L 31/04 (2006.01) H01L 27/142 (2006.01) H01L 31/0304 (2006.01) H01L 31/068 (2006.01) H01L 31/18 (2006.01)

Patent

CA 1207422

ABSTRACT OF THE DISCLOSURE Ternary III-V multicolor solar cells incorporating layers of GaAs1-x-yPXSby and an improved process of fabricating multicolor photo- voltaic III-V compound photovoltaic devices are disclosed. In addition, three-terminal ternary III-V two color solar cells incorporating layers of GaAs1-x-yPxSby are also disclosed. The three-terminal structure enables the current to be withdrawn from both cells without the necessity of current matching between the two color stacked photovoltaic device. In addition, the three-terminal configuration permits the independent determination of the individual properties of each cell. The stacked two-color cells can be connected in series through the three-terminal arrangement to overcome the problems of independent load matching between the cells encountered with the conventional two-terminal configuration. Finally, the three-terminal two colored solar cell does not require a shorting junction between the homo- junction layers of the cell but only a simple transition layer. This speeds the processing of the device.

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