We employed ultrasonic spray deposition method for production of high quality FTO
thin film TCOs to be employed in a silver embedded grid type and monolithic type
dye sensitized solar modules. Produced films exhibited dense and crystalline
structure with homogeneous coverage on solar glass substrates. Obtained
resistivity and light transmission values of FTO are comparable to commercially
available FTO coated glasses used widely in the industry. After optimization of
the chemistry and deposition conditions, 10x10 cm sized glass substrates could
be produced for large area photovoltaic modules. Produced FTO films were used to
construct monolithic type and parallel type dye sensitized solar modules.
Monolithic modules yielded 1.61% active area efficiency value. In order to
enhance the active area of the parallel type modules, silver grid lines were
embedded in glass substrate and FTO coating was deposited on the lines. Due to
this effective design, we achieved 2.42% efficiency on the total area of the
55x55 mm sized module compared to 2.90% active area efficiency, proving that
this design is suitable for enhancing efficiency values of parallel type dye
sensitized solar modules.