SOLAR CELL Russian patent published in 2012 - IPC H01L31/04 

FIELD: physics.

SUBSTANCE: solar cell has a substrate having optical transparency; a photoelectric converter provided on the substrate, including a top-face electrode having optical transparency, a photoelectric conversion layer, and a back-face electrode having light reflectivity; and a low-refractive conductive layer, made of a conductive material having optical transparency, being adjacent to the photoelectric conversion layer, and lying on a side of the photoelectric conversion layer opposite to the substrate. The low-refractive conductive layer is placed between the photoelectric conversion layer and the back-face electrode. Only that low-refractive conductive layer lies between the photoelectric conversion layer and the back-face electrode. The thickness of the low-refractive conductive layer ranges from 40 nm to 80 nm, and the refraction index of the low-refractive conductive layer ranges from 1.4 to 2.0 relative wavelength from 450 nm to 1000 nm.

EFFECT: possibility of improving coefficient of reflection at the boundary surface between the low-refractive conductive layer and the photoelectric conversion layer and possibility of restricting increase of processes.

2 cl, 4 dwg