光閉じ込め構造を用いたGaSb/GaAs量子リング中間バンド型太陽電池

抄録

Intermediate band solar cells are expected to surpass the efficiency limit of conventional single-junction solar cells. We fabricated an GaSb/GaAs quantum ring intermediate band solar cell integrated with a light trapping structure which showed an increased light absorption and a higher material quality with reduced non-radiative recombination.