  Low cost, highly efficient, and stable solar cells demand low temperature
processing, less stringent criteria on materials, and possibility of dynamic
recovery from long term degradation: a combination of features unachievable
from the perspectives of current cSi technology. To this end, here we propose a
novel solar cell architecture with an additional control gate. Our simulation
results indicate that the proposed device can achieve excellent efficiency even
if the back-surface passivation is sub-optimal; thus allowing exploration of a
wide variety of materials and low temperature fabrication processes.
Importantly, such solar cells can dynamically offset efficiency loss due to
elevated temperature and interface degradation associated with long term field
operation and hence could be of broad interest to the PV community.
