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

FIELD: chemistry.

SUBSTANCE: invention relates to a polymeric compound, to variants of compositions intended for the manufacture of polymer photovoltaic, light-emitting devices and organic transistors, as well as to a method for the preparation of a polymeric compound and its use. The polymer compound has the general formula

(I),

where n is an integer from 2 to 2000 and represents the number of repeating monomeric units in the polymer chain, which may be identical or different, R¹, R², R³, R⁴ - the same or different from each other and represent a hydrogen atom, halogen, an alkyl group, an alkoxyl group, a thioalkyl group, an aryl group, alloctype, a thioaryl group, an arylalkyl group, an aryloxy group, an arylalthio group, an arylalkenile group, an arylalkynile group, a monovalent heterocyclic group, a heterocyclic tighrope, an amino group, a substituted amino group, a silyl group, a substituted silyl group, an acyl group, an acyloxy group, a carbonic acid residue, an amide group, an acid-imide group, a carboxyl group, a substituted carboxyl group, a cyano or nitro group, R⁵, R⁶ - the same or different from each other and represent an alkyl group C1-C20; X is a group of

,

where Y=N-R⁷, or CR⁸R⁹, or SiR⁸R⁹, where R⁷, R⁸, R⁹- the same or different from each other and represent an alkyl group C1-C20, or take the same values as R¹, R², R³, R⁴, R⁵ or R⁶, EG-1 and EG-2 - end groups of the polymeric compound that are independent from each other and represent an atom of hydrogen, halogen, trialkylsilyl (-Sn(Alkyl)₃), the 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 the general 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 flocking material. In the second version, the composition comprises, at least, one polymer compound of the general formula (I) and, at least, one fullerene compound. The process of producing polymers of the general formula (I) is that a polycondensation reaction of Stille or Suzuki is carried out to couple the starting monomers together to form a conjugated polymer. Polymers of the formula (I) are used for the manufacture of photovoltaic converting devices, preferably solar cells, solar panels, solar modules, and optical sensors.

EFFECT: invention allows to increase the electronic properties of polymers and to improve the photovoltaic properties of the converting devices.

15 cl, 8 dwg, 1 tbl, 4 ex