• 专利标题:   New functionalized oligothiophene used as hole transport material for optoelectronic device, such as solar cells, lasing, light-emitting devices and photodetectors.
  • 专利号:   EP4006021-A1
  • 发明人:   KINGE S, SUTANTO A A, VELLAICHAMY J, CHEN M, KHAJA NAZEERUDDIN M
  • 专利权人:   TOYOTA JIDOSHA KK
  • 国际专利分类:   C07D333/20, H01L051/00
  • 专利详细信息:   EP4006021-A1 01 Jun 2022 C07D-333/20 202255 Pages: 29 English
  • 申请详细信息:   EP4006021-A1 EP210564 30 Nov 2020
  • 优先权号:   EP210564

▎ 摘  要

NOVELTY - A functionalized oligothiophene (I), is new. USE - New functionalized oligothiophene used as hole transport material for optoelectronic device, such as solar cells, lasing, light-emitting devices and photodetectors (all claimed). ADVANTAGE - The functionalized oligothiophene has excellent stability. The perovskite solar cell has high efficiency and is economical. DETAILED DESCRIPTION - A functionalized oligothiophene of formula: A(power of n)B'x (I), is new. A(power of n) = structure comprising n thiophenes in a non-fused arrangement; n = integer; x = 1 to 6; B' = p-(diaryl-amino)-arylene substituent of formula (a); R1a,R1b,R2a,R2b,R3a-R3c,R4a-R4d = H, 1-6C linear or branched alkyl, preferably methyl or ethyl or halo; X1,X2 = alkoxy, -OR5;and R5 = 1-6C linear or branched alkyl, preferably methyl or ethyl. INDEPENDENT CLAIMS are included for the following: (1) manufacture of functionalized oligothiophene; and (2) perovskite solar cell, which comprises a transparent conductive layer, an electron transport layer, a perovskite film, a hole transport layer of the functionalized oligothiophene and an electrode and optionally further comprises one or more of an electron transport layer, an electron-blocking layer and a hole-blocking layer.