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Optimal design of amorphous/crystalline tandem cells

โœ Scribed by John C.C. Fan; B.J. Palm

Publisher
Elsevier Science
Year
1984
Weight
796 KB
Volume
11
Category
Article
ISSN
0379-6787

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โœฆ Synopsis

Computer analysis has been used to determine the conversion efficiency of amorphous-on-crystalline and crystalline-on-amorphous two-cell tandem structures as a function of the energy gaps of the component cells. Fourterminal (separately connected) structures have higher efficiencies than twoterminal (series-connected) structures and are less sensitive to variations in energy gap, operating temperature and air mass. The optimal amorphous/ crystalline tandem structures show only a modest increase in efficiency over their component crystalline cells. Unless the production costs of the tandem structures are low, this increase may not be sufficient to justify their adoption.

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