Efficiency limits of electronically coupled upconverter and quantum ratchet solar cells using detailed balance
Efficiency limits of electronically coupled upconverter and quantum ratchet solar cells using detailed balance
The intermediate band solar cell (IBSC) and the quantum ratchet solar cell (QRSC) have the potential to surpass the efficiency of standard single-junction solar cells by allowing sub-gap photon absorption through states deep inside the bandgap. High efficiency IBSC and QRSC devices have not yet been achieved, however, since introducing …