POLYMERIC COMPOUND AND ITS APPLICATION IN PHOTOVOLTAIC DEVICES Russian patent published in 2018 - IPC C08G61/12 C08L65/00 B82Y30/00 H01L51/30 

FIELD: chemistry.

SUBSTANCE: polymeric compound has the general formula (I), where n is an integer from 2 to 2000 and represents the number of repeating monomer units in the polymeric chains, which may be identical or differentR¹, R², R³, R⁴ represent the hydrogen atom; R⁵, R⁶ are the same or differ from each other and represent an alkyl group C1-C20; X represents a group , where Y=N-R⁷, or CR⁸R⁹, or SiR⁸R⁹, where R⁷, R⁸, R⁹ are the same or differ from each other and represent an alkyl group C1-C20, EG-1 and EG-2-end groups of the polymeric compound, which are not dependent on each other and represent an atom of hydrogen, halogen, trialkyl-stannyl (-Sn(Alkyl)₃), a residue of boric acid (-B(OH)₂), ester of boric acid (-B(OAlkyl)₂), aryl or heteroaryl fragment. The composition contains, at least, one polymeric compound of formula (I) and, at least, one material selected from the group consisting of a hole-transport material, an electron-acceptor material, an electron-transport material, and a light-absorbing material. In the second version, the composition contains, at least, one polymeric compound of formula (I) and, at least, one fullerene compound. The method of producing polymers of formula (I) is that a polycondensation reaction of Stille or Suzuki is carried out to bind the starting monomers together to form a conjugated polymer. Polymers of formula (I) are used in the manufacture of photovoltaic converting devices, preferably solar cells, solar panels of solar modules, and optical sensors.

EFFECT: polymer with optimal electronic properties, has a width of forbidden zone of 1,2 -1,7 EV, which can be used in the manufacture of photovoltaic converting devices with higher efficacies of photoelectric light transformation.

16 cl, 9 dwg, 1 tbl, 8 ex