Programm Photovoltaik Ausgabe 2008 ... - Bundesamt für Energie BFE

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Evaluation 2007 and Outlook 2008
During 2007, the monolithic dye solar cell concept was turned into first modules, delivering fair efficiencies
of over 5 % at 1000 W/m 2 illumination conditions, showing proof-of-principle. The problem of
electrolyte filling of the solar cell is not yet elegantly solved and further work is required for this precise
step.
In the field of nanolayering, the first SnO2:F layers were deposited onto an extremely thin polyimide
layer (less than 2 µm), affording a practically transparent conductive plastic substrate with 10-15
ohm/sq surface resistivity. So far, only 5 x 5 cm substrates were made this way.
During 2008, the upscaling to 30 x 30 cm will be pushed with the aim to make test cells / modules to
be aged in artificial sunlight and outdoors conditions, while the production techniques are improved for
potential low-cost manufacturing of first sample modules.
Thanks to our new large autoclave, the production of nano-TiO2 will be increased substantially, allowing
efficient delivery of these critical materials to our project partners.
New applications for our formulated nano-TiO2 for optical sensing (with the CSEM) will be explored.
In mid 2008, we will receive our SEM Tescan Vega SBU with the Oxford Instrument EDX microanalysis
tool and the EBIC detector to investigate the solar cells and their related materials at the microscopic
level.
References
www.napolyde.org,
www.myndsphere.com
“All Screen Printed Dye Solar Cell” Toby Meyer, David Martineau, Asef Azam and Andreas Meyer,
Proc. SPIE vol 6656-6, 28-30 August 2007, San Diego, USA.
NAPOLYDE, T. Meyer, Solaronix
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