Detailed illumination model for bifacial solar cells

Bifacial a-Si:H solar cells: Origin of the asymmetry between front and back illumination

The asymmetry in performance between front and back illumination of a single-junction bifacial hydrogenated amorphous silicon (a-Si:H) cell is analyzed by numerical simulation using the ASA software and compared to experimental results. It is found that the difference between the band mobility of electron and the one of holes, and especially the difference in the band tail characteristic energy...

Development of bifacial n-type solar cells for industrial application

Detailed balance analysis of nanophotonic solar cells.

We present a detailed balance based approach for performing current density-voltage characteristic modeling of nanophotonic solar cells. This approach takes into account the intrinsic material non-idealities, and is useful for determining the theoretical limit of solar cell efficiency for a given structure. Our approach only requires the cell's absorption spectra over all angles, which can be r...

A Performance Model for Bifacial PV Modules

Sandia National Laboratories, the National Renewable Energy Laboratory, and the University of Iowa are collaborating to develop a performance model for bifacial PV modules. As with monofacial PV modules, a bifacial PV model consists of sequential operation of the component sub-models. Bifacial PV modules accept light on both their front and rear surfaces which presents a unique modeling challen...

Transparent nickel selenide alloy counter electrodes for bifacial dye-sensitized solar cells exceeding 10% efficiency.

In the current work, we report a series of bifacial dye-sensitized solar cells (DSSCs) that provide power conversion efficiencies of more than 10% from bifacial irradiation. The device comprises an N719-sensitized TiO2 anode, a transparent nickel selenide (Ni-Se) alloy counter electrode (CE), and liquid electrolyte containing I(-)/I3(-) redox couples. Because of the high optical transparency, e...