TRIPHENYLAMINE FUNCTIONALIZED OLIGOTHIOPHENES: STABLE AND LOW COST HOLE-TRANSPORTING MATERIALS FOR HIGH PERFORMANCE PEROVSKITE SOLAR CELLS
申请人:TOYOTA JIDOSHA KABUSHIKI KAISHA
公开号:EP4006021A1
公开(公告)日:2022-06-01
The present invention relates to a functionalized oligothiophene, represented by the formula (1):
AnBx (1)
wherein An is structure consisting of n thiophenes in a non-fused arrangement, wherein n is an integer and x is an integer from 1 to 6, and B is a p-(diaryl-amino)-arylene substituent of formula (2) wherein # represents the point of attachment to the structure An, and n is an integer:
wherein:
R1a, R1b, R2a, R2b, R3a, R3b, R3c, R3d, R4a, R4b, R4c, R4d are each independently from one another: a hydrogen atom; a linear or branched alkyl group of 1 to 6 carbon atoms, preferably a methyl or ethyl group; or a halogen atom;
X1 and X2 are each independently from one another: an alkoxy group -O-R5 wherein R5 is a linear or branched alkyl group of 1 to 6 carbon atoms, preferably a methyl or ethyl group;
X1 and X2 are each independently from one another at an ortho, meta or para position with respect to the nitrogen atom N of formula (2);
groups R3a, R3b, R3c and R3d represent the substituents on the four sites of the aromatic ring bearing group X1 that are neither bound to group X1 nor to the nitrogen atom shown in formula (2), the sites bound to groups R3a, R3b, R3c and R3d being chosen in any order on the aromatic ring bearing group X1; and
groups R4a, R4b, R4c and R4d represent the substituents on the four sites of the aromatic ring bearing group X2 that are neither bound to group to group X2 nor to the nitrogen atom shown in formula (2), the sites bound to groups R4a, R4b, R4c and R4d being chosen in any order on the aromatic ring bearing group X2, and the method of preparation thereof.
The present invention also relates to a perovskite solar cell comprising the functionalized oligothiophene as holle transport material.
本发明涉及一种由式(1)表示的官能化低聚噻吩:
AnBx (1)
其中,An 是由 n 个非融合排列的噻吩组成的结构,其中 n 是整数,x 是 1 至 6 的整数,B 是式 (2) 的对(二芳基氨基)-芳基取代基,其中 # 代表与结构 An 的连接点,n 是整数:
其中
R1a、R1b、R2a、R2b、R3a、R3b、R3c、R3d、R4a、R4b、R4c、R4d 各自独立地为:氢原子;1 至 6 个碳原子的直链或支链烷基,最好是甲基或乙基;或卤素原子;
X1和X2各自独立地为:烷氧基-O-R5,其中R5为1至6个碳原子的直链或支链烷基,最好为甲基或乙基;
X1 和 X2 各自独立地位于相对于式(2)的氮原子 N 的正位、偏位或对位;
基团 R3a、R3b、R3c 和 R3d 代表带有基团 X1 的芳香环上四个位点上的取代基,这些取代基既不与基团 X1 结合,也不与式 (2) 所示的氮原子结合,与基团 R3a、R3b、R3c 和 R3d 结合的位点可在带有基团 X1 的芳香环上按任意顺序选择;以及
基团 R4a、R4b、R4c 和 R4d 代表芳香环上带有基团 X2 的四个位点上的取代基,这些取代基既不与基团 X2 结合,也不与式 (2) 所示的氮原子结合,与基团 R4a、R4b、R4c 和 R4d 结合的位点可在芳香环上带有基团 X2 的任意顺序选择,以及其制备方法。
本发明还涉及一种过氧化物太阳能电池,该电池包含作为全息传输材料的官能化低聚噻吩。