Patent ID: 9714253
Date: 2017-07-25
CPC Classifications: C07D,C07F,H01L

Claim:
1. An organic thin film transistor having a semiconductor active layer containing a compound represented by the following general formula (1): wherein in the general formula (1), R 1 to R 10 each independently represent a hydrogen atom or a substituent, provided that at least one of R 1 to R 4 and R 6 to R 9 represents a substituent represented by the following general formula (W), and in the general formula (W), when L represents a divalent linking group represented solely by the following general formula (L-1), at least two of R 1 to R 4 and R 6 to R 9 each represent a substituent represented by the following general formula (W), and the substituents represented by R 1 to R 4 and R 6 to R 9 do not form a condensed ring by being bonded to each other, wherein in the general formula (W), L represents a divalent linking group represented by one of the following general formulae (L-1) to (L-13) or a divalent linking group containing two or more of divalent linking groups represented by any of the following general formulae (L-1) to (L-13) bonded to each other; and R represents a substituted or unsubstituted alkyl group having 2 or more carbon atoms, an oligooxyethylene group having a number of repetition of oxyethylene units of 2 or more, an oligosiloxane group having 2 or more silicon atoms, or a substituted or unsubstituted trialkylsilyl group, provided that R is capable of representing a substituted or unsubstituted trialkylsilyl group only in the case where L adjacent to R represents a divalent linking group represented by the following general formula (L-3): wherein in the general formulae (L-1) to (L-13), a position shown by a wave line represents a bonding position to the benzobisbenzofuran skeleton; a position shown by * represents the bonding position to R in the general formula (W); n in the general formula (L-1) represents an integer of 1 or more; m in the general formula (L-10) represents 4; m in the general formulae (L-11) and (L-12) represents 2; and R′ in the general formulae (L-1), (L-2), (L-10), (L-11), (L-12) and (L-13) each independently represent a hydrogen atom or a substituent, wherein the compound represented by the general formula (1) is a compound represented by one of the following general formulae (2-3) and (2-4): wherein in the general formula (2-3), L e represents a divalent linking group represented by the following general formula (L-3′); R e represents a substituted or unsubstituted alkyl group having 2 or more carbon atoms, an oligooxyethylene group having a number of repetition of oxyethylene units of 2 or more, an oligosiloxane group having 2 or more silicon atoms, or a substituted or unsubstituted trialkylsilyl group; R 31 and R 32 each independently represent a substituent (provided that R 31 is not a group represented by the general formula (W)); R 5 and R 10 each independently represent a hydrogen atom or a substituent; n31 represents an integer of from 0 to 4; and n32 represents an integer of from 0 to 3, wherein in the general formula (2-4), L f represents a divalent linking group represented by the following general formula (L-3′); R f represents a substituted or unsubstituted alkyl group having 2 or more carbon atoms, an oligooxyethylene group having a number of repetition of oxyethylene units of 2 or more, an oligosiloxane group having 2 or more silicon atoms, or a substituted or unsubstituted trialkylsilyl group; R 41 and R 42 each independently represent a substituent (provided that R 41 and R 42 are not a group represented by the general formula (W)); R 5 and R 10 each independently represent a hydrogen atom or a substituent; n41 represents an integer of from 0 to 4; and n42 represents an integer of from 0 to 3: wherein in the general formula (L-3′) in the general formulae (2-3) and (2-4), a position shown by a wave line represents a bonding position to the benzobisbenzofuran skeleton; a position shown by * represents the bonding position to one of R e and R f adjacent to the general formula (L-3′).