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. 2015 Apr 22;6:6902. doi: 10.1038/ncomms7902

Figure 4. Current density–voltage characteristics.

Figure 4

Emitter and collector current density–voltage characteristics of the HBTSC for several values of the injection efficiency (□) and different polarization of the base–emitter and base–collector junctions. The modelled cell is characterized by the following bandgaps: EH=1.76 eV and EL=0.8 eV. The results correspond to the maximum concentration case (46,050 suns).