freeOPV free flexible organic printed solar cells.

[Legit-Design]

Didn't see separate discussion about these
http://thinkprogress.org/climate/2014/06/23/3451684/future-of-solar-technology/



http://www.rsc.org/chemistryworld/2014/06/roll-roll-flexible-organic-tandem-solar-cells



I just ordered mine from http://plasticphotovoltaics.org/free-opv.html , yes you have to register to coursera if you don't have account but coursera is awesome tool for learning (I hope, only have experience from edx).
Interested to see what kind of real performance could get out of these free postcard sized solar cells. I hope I actually get one, you never know with these free deals.

Their current design
http://www.plasticphotovoltaics.com/free-opv/opv-current.html

The current barrier foil also does not have a UV filter which is likely to pose problems during longterm exposure outdoor. In addition the carbon based freeOPV in its current form does not support exposure to liquid water.

Doesn't sound too bad considering can get these for free.

Does anyone have one and has done some tests on it? Like how much actual power should one expect while in sunlight?

[Legit-Design]

These don't seem totally useless if they can power small motor.

http://plasticphotovoltaics.org/images/T-freeOPVs%20certificate_CLOP_signed.pdf
Tells surface are on one of their better cells. Tandem cells have higher efficiency.

What are the parameters of the freeOPV module?
We cannot guarantee any fixed parameters, but we try to ship freeOPV modules with an efficiency of at least 1 %.

So active area is 52,2 cm², or 0,00522m² if sun shines 1000W/m² and efficiency is 1%.
we get 0,0522W or 52,2mW
0,006525A or 6,525mA if the cell is ~8V

I think I can reasonably expect to get half of that.

[eneuro]

We cannot guarantee any fixed parameters, but we try to ship freeOPV modules with an efficiency of at least 1 %.
So active area is 52,2 cm², or 0,00522m² if sun shines 1000W/m² and efficiency is 1%.
we get 0,0522W or 52,2mW

1000W/m2 according to Bird Clear Sky model is dificult to get from the sun and only on specific sun hours on clear sky, especialy in Europe,so it is very optimistic input solar power   

I'm looking for flexibe PV for my HPV electric vehicle but 1% is so small that it is useless in this EV project while about 250W is needed including human power.