SLIDE 5 5
9 16-7-2010
S/T methodology – project structure
Research line Development line R&D line
10 16-7-2010
Science and Technology objectives HIFLEX (I)
Power conversion efficiency
Laboratory single cell (1cm2):
- an ITO-free solar cell architecture that achieves at least 90% of the efficiency of “standard” ITO-based
solar cells.
- A “reference” ITO-based solar cell (benchmark with a maximum power conversion efficiency for the
ITO reference cell will be > 7%, and potentially reaching higher efficiencies up to 10%, at the end of the project Module level:
- an ITO free OPV module with an area > 50 cm2 with an efficiency which is > 90% of the single lab cell
efficiency (1cm2, same cell architecture) based on the active area measured at Standard Test Conditions (1000W/m2, AM1.5, 25oC)
- an OPV module processed via S2S or R2R with a total area module efficiency > 60% of the small cell
efficiency measured at Standard Test Conditions (1000 W/m2, AM1.5, 25oC) Ambient light efficiency:
- The Voc of the OPV module should amount to > 90% of the Voc for a single lab cell for light intensities
ranging from 1000 W/m2 (1 sun equivalent) down to 5 W/m2 (0.005 sun ~approximately 500 Lux). Performance & Technology enabler:
- Low cost, solution processable, alternative to ITO based upon PEDOT: PSS with integrated high-
conductive grid with a total sheet resistance, Rsheet < 60 Ohm/square and transmission >90 %.
