  In this paper, a novel lateral quantum well solar cell has been introduced,
and the structural parameters effects of these nano-structures on the
performance of the device have been investigated. For modeling, the continuity
equation has been solved in the quasi neutral regions. However, to analyze the
quantum wells' effects, first the Schrodinger and Poisson equations have been
solved self-consistently. To find the absorption coefficient derived from the
Fermi's golden rule, the obtained Eigen states and energies and also the
effects of multilayers using Transfer Matrix Method have been employed. Then,
to find the solar cell performance parameters, all radiative and non-radiative
recombinations have been accounted. It is found that modifying different
geometrical parameters, including the thickness of the system, the widths of
the wells and barriers, and also some structural parameters such as the
barriers' mole fraction could noticeably influence the characteristics of the
device. So, optimizing these parameters is necessary to obtain a good
efficiency.
