If we have a large industrial scale roll-to-roll printer making organic polymer cells (assuming they reach commercialisation) how many GW capacity could it produce?

Assume 200m2 per minute, 10% efficiency.  Standard testing is 1000W/m2 (don't use 180W/m2)

Poly-crystalline solar cells are more efficient than mono-crystalline cells

Look up the current 'Best Research Cell Efficiencies' graph at NREL.  What is the current record for single cell mono-crystalline silicon, and who holds it?

What is the name of the science theory describing the maximum possible efficiency of a single solar cell (you'll need to do some homework as this wasn't covered in the lecture)?

Photovoltaic cells have been around since the 1950s, but when was the first mono-crystalline silicon cell developed with an efficiency greater than 20%?

The bus bar fingers on the top of the solar cell (which receive the electrons) can be as wide as possible to maximise the chances of picking up the electrons before recombination occurs.

Which of these combinations less to the lowest reflectivity?

The fill factor is the ratio of the square defined by the Jsc and Voc values integral over the observed JV curve

The efficiency of a solar cell is described by:

The doping of the semiconductor material alters the fermi level.  By adding more electrons in the n-type material, the fermi level is increased, and by removing electrons, the fermi level in the p-type material is decreased.  At the PN junction, the fermi levels must be the same, so this effectively moves the valence energy down for the n-type and up for the p-type, creating an energy 'waterfall'.