Projected Performance of an InxGa1-xAs Quantum Dot Intermediate Band Solar Cell
Abstract
Quantum Dot Intermediate Band Solar Cell
(QDIBSC) is one of the emerging technologies in the solar
photovoltaic arena, which has immense potential to be
demonstrated as a high efficiency device. For a QDIBSC to
surpass the efficiency of a single junction cell, optimization of
design is required. In this work, a QDIBSC model based on
In0.53Ga0.47As quantum dots has been designed and evaluated
with respect to dot size and spacing. The impact of carrier
lifetime on short-circuit current and open-circuit voltage is
studied. The conversion efficiency has been enhanced from
27.1% to 32.62% as compared to a conventional single junction
cell.
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