ELECTROMAGNETIC RADIATION-TO-ELECTRIC CURRENT PHOTOELECTRIC CONVERTER WITH DOPANT GRADIENT PROFILE AND METHOD OF MAKING SAID CONVERTER Russian patent published in 2011 - IPC H01L31/42 B82B1/00 H01L31/18 B82B3/00 

FIELD: physics.

SUBSTANCE: electromagnetic radiation-to-electric current photoelectric converter with dopant gradient profile has a 250-1000 nm deep p-n junction with 5×10¹⁹ cm^-3 of doping impurities in the n-layer or in the p-layer respectively; metal (gold or silver) nanoparticles with size of approximately 100 nm at the front surface between microcontacts; and an insulating layer between the nanoparticles, and an antireflecting coating on top of the entire structure, wherein the configuration and surface area of the isotype p-p⁺(n-n⁺) junction coincide with the configuration and surface area of sections with n⁺-p (p⁺-n) junctions under electrodes of the receiving side and the rear surface.

EFFECT: invention enables optimisation of the device, obtaining high voltage across idle terminals owing to the gradient structure of the p-n junction as a result of reduction of bulk recombination of electrons, as well as high efficiency of the photocell.

13 cl, 1 ex, 1 dwg