| dc.description.abstract | Semiconductor Insulator Semiconductor (SIS) Photovoltaic Converters
have been fabricated successfully by the spray pyrolysis and the
Vacuum deposition techniques. The two techniques and fabrication
processes have been discussed. Preparatotion of Fluorine doped Tin
Oxide films is also presented. Sn02:F thin films with a sheet
resistivity of 75n/owere deposited on too si=cm P type (111) boron
doped silicon wafer by spray pyrolysis and necessary contacts
app7ied yie7ding an open circuit vo7tage of 110mV, short circuit
current density of 45fA/C~, fill factor of 0.25 and efficiency of
0.002% under 80mw/cm2 insolation.
Indium Tin Oxide thin films were deposited on similar silicon wafers
using the vacuum coating unit and best va7ues obtained for the cells
were, open circuit vo t tese, 340mV, short circuit current dens i ty ,
4.9mA/cm2, fill factor, 0.404 and cell efficiency 0.85%. Optical
measurements of the films have been done and it has been found that
the films are transparent and conducting.
The low efficiency can be attributed to high series resistance and
possibly thick interfacial oxide layer. | en |
