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The choice of individual bandgaps is important for achieving the maximum efficiency of a multijunction photovoltaic system. The optimization tool described in this paper uses a multijunction photovoltaic (PV) model and determines the bandgap energies that yield the highest possible system power efficiency for a given number of PV junctions. The tool has the ability to simulate PV systems with combinations...
Quasi‐3D distributed emitter models utilizing a unit cell‐based methodology have been successfully applied to the analysis of lateral current flow in solar cell emitter layers. However, the analysis of the specific loss mechanisms resulting from this flow has not been given adequate attention. In this work, a quasi‐3D model for the simulation of effects related to the lateral flow of current in a...
We have designed, fabricated, and tested a small, integrated photovoltaic module comprised of two separately‐contacted, high efficiency, multijunction solar cells and non‐imaging optics that both concentrate and spectrally split the incoming light. This hybrid design allows us to individually optimize the tandem cells and optical elements. The system has a measured module efficiency, including optical...
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