Programm Photovoltaik Ausgabe 2009 ... - Bundesamt für Energie BFE

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Work and results
SP4 – Process Analysis – Monolithic Module Assembly
As a possible NAPOLYDE small area demonstrator, the “monolithic” dye sensitized solar cell module
was developed and its fabrication processes are investigated for possible industrialization.
The monolithic module production is based on all screen-printed layers deposited on laser structured
FTO glass. First a layer of nano-TiO2 is printed, followed by a spacer layer acting as insulator, finally a
carbon layer is printed that carries the current from cell to the next one, allowing the voltage increase
in the module.
10 x 10 cm sized monolithic module, having an active area of 62 cm 2 .
Analysis of the 19 steps required for the monolithic module manufacturing showed the possibility to
remove some of these steps, in particular the firing to 450°C is only necessary once instead of 3 times
with the earlier concept, thus saving energy and production time.
Optimized process flow for manufacturing small 0.68 cm 2 monolithic test cells.
NAPOLYDE, T. Meyer, Solaronix
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