HYBRID PHOTOCONVERTER MODIFIED WITH MAXENES Russian patent published in 2019 - IPC H01L51/42 

FIELD: chemical or physical processes.

SUBSTANCE: invention relates to the technology of semiconductor thin-film hybrid photoconverters. Hybrid thin-film photoconverters with heterojunctions and layers modified maxenes Ti₃C₂T_x, operating in the visible spectrum of sunlight, as well as near UV and IR regions (300–780 nm). According to the invention, the hybrid thin-film photoconverter comprises a transparent substrate, which is successively coated with a transparent electrode and a photoactive layer located between transport selective conductive layers p and n type of the conductivity, on the upper of which there is an opaque electrode, wherein the photoactive layer is made of hybrid perovskites APbX₃, where: A are organic or inorganic cations of the type (CH₃NH₃⁺; CH₅N₂⁺; Cs⁺; CH₆N₃⁺; (NH₃)BuCO₂H⁺), X₃ – halogen elements of row 1; Br; Cl, and on all boundaries of heterojunctions and on boundaries of metal-semiconductor layers of maxenes Ti₃C₂T_x are located, with thickness of 5–50 nm, where: T_x – functional groups, by which surface of two-dimensional materials is terminated, T_x = O^-, OH^-, F^-.

EFFECT: technical result of present invention is increase in efficiency by increasing no-load voltage of devices by more than 10 % to values > 1,10 V, as well as increasing filling factor of current-voltage characteristics of devices by more than 5 % (> 0,75) by reducing current shunting leaks and increasing contact resistance.

9 cl, 2 dwg