PHOTOCELL Russian patent published in 2013 - IPC H01L31/42 B82B1/00 

FIELD: physics.

SUBSTANCE: photocell consists of two or more monolayers of semiconductor spherical particles, one part of which has one type of conductivity and the other has an opposite type of conductivity. The particles of the semiconductor material have the size of the order of the electron diffusion length in said semiconductor. The top of the photocell is coated with antireflection layer. To increase conversion efficiency of the photocell, particles in different monolayers can have a different diameter, which improves absorption of radiation at different wavelengths. Instead of or along with a bottom transparent electrode, a metal electrode can be used, which provides both removal of generated charges and reflection of transmitted radiation back to the structure, ensuring more absorption thereof.

EFFECT: high efficiency of the photocell by increasing absorption of semiconductor material per unit surface area or per unit volume of the absorbing semiconductor material, low cost of making the photocell owing to low consumption of material.

8 cl, 3 dwg