Copolymer, organic semiconductor material, organic electrical device, photovoltaic module

摘要

A copolymer containing a repeating unit having a dioxopyrrole condensed ring skeleton and a repeating unit having a dithieno condensed ring skeleton and also having a specific substituent is provided.

主权项

1. A copolymer, comprising:
a repeating unit represented by Formula (1A); a repeating unit represented by Formula (1B); and a repeating unit represented by Formula (1C),where A represents an atom selected from elements of Group 16 of the periodic table,
each of Q1 and Q2 independently represents an atom selected from elements of Group 14 of the periodic table, R1 represents a hydrocarbon group optionally having a heteroatom, R2 represents an optionally substituted branched alkyl group, R4 represents an optionally substituted linear alkyl group, optionally substituted aromatic hydrocarbon group, or optionally substituted aromatic heterocyclic group, each of R3 and R5 independently represents an optionally substituted branched alkyl group, optionally substituted linear alkyl group, optionally substituted cycloalkyl group, optionally substituted aromatic hydrocarbon group, optionally substituted aliphatic heterocyclic group, or optionally substituted aromatic heterocyclic group, and at least one of a combination of R2 and R5 and a combination of R3 and R4 is a combination of groups that are different from each other, wherein a ratio of the repeating units represented by Formula (1B) and a ratio of the repeating units represented by Formula (1C) each satisfies 1 mol % or more and 98 mol % or less.