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This paper concentrates on the performance of lattice-matched and metamorphic triple junction solar cells under different temperatures and spectral conditions. This information is essential for a better understanding of concentrator photovoltaic systems. It is well known that, compared to single-junction cells, the performance of multi-junction solar cells shows a stronger dependence on the incident...
Several groups have reported on intermediate band solar cells (IBSC) fabricated with InAs/GaAs quantum dots (QD) which exhibit quantum efficiencies (QE) for sub-bandgap photon energies. However, this QE is produced by the absorption of photons only through valence band (VB) to intermediate band (IB) transitions. The absorption of photons of that energy in IB to conduction band (CB) transitions is...
In this work we investigate the optical and thermal properties of In12Ga88N/GaN photovoltaic devices. These devices show very good solar cell characteristics with peak external quantum efficiency of 63%, open circuit voltage of 1.7 V, and a fill factor of 76%. Thermal measurements show no reduction in output power with increasing temperature up to 87??C.
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