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Fig. 6

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Isc/max (Isc) and Voc/max (Voc) versus the thickness of the tunnel barrier tB. Assuming a thick barrier excited states are very thin and energy mesh has to be also very thin. From a computational point of view we cannot conduct the calculation for tunnel thicker than 3 nm assuming the transverse dispersion. This calculation has then been conducted only for a transverse wave vector equals to zero.

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