- Conference date: 15–17 April 2013
- Location: Miyazaki, Japan
A limiting efficiency of a solar cell changes according to the incident solar spectrum. With respect to a two-terminal triple junction tandem solar cell and interconnection of individual cells within it, the variation of limiting efficiency of a modified triple-tandem solar cell, in which two series-connected bottom cells are connected in parallel to the top cell, is lower than that of a conventional fully series-connected tandem cell. We calculate limiting efficiency of these two structures using measured solar spectra and meteorological condition at four different locations in Japan. It is shown that a triple junction tandem cell in a combination of series and parallel connections generates 7% larger amount of power than a series-connected cell does in average if these cells are optimized at airmass (AM) 1.5.
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