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    • 2. 发明授权
    • Photovoltaic device
    • 光伏装置
    • US09006714B2
    • 2015-04-14
    • US13504348
    • 2010-10-29
    • Ken YoshimuraKenichiro OhyaTakehito Kato
    • Ken YoshimuraKenichiro OhyaTakehito Kato
    • H01L29/08H01L51/00B82Y10/00C08G61/12H01L51/05H01L51/42
    • H01L51/0036B82Y10/00C08G61/122C08G61/123C08G61/126C08G2261/3223C08G2261/3246C08G2261/344C08G2261/354C08G2261/411C08G2261/91H01L51/0043H01L51/0046H01L51/0545H01L51/4253H01L2251/308Y02B10/12Y02E10/549
    • The present invention provides a photovoltaic cell having a large short-circuit current density and a large photoelectric conversion efficiency.This photovoltaic cell comprises: a first electrode; a second electrode; and an active layer between the first electrode and the second electrode; wherein the active layer contains a compound having a structural unit represented by Formula (1): wherein Ar1 and Ar2 are the same as or different from each other and represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group, with at least one of Ar1 and Ar2 being a trivalent heterocyclic group; X1 and X2 are the same as or different from each other and represent —O—, —S—, —C(═O)—, —S(═O)—, —SO2—, —C(R50)(R51)—, —Si(R3)(R4)—, —N(R5)—, —B(R6)—, —P(R7)—, or —P(═O)(R8)—; R50, R51, R3, R4, R5, R6, R7, and R8 are the same as or different from each other and represent a hydrogen atom, a halogen atom, or a monovalent organic group; and X1 and Ar2 are bonded with atoms adjacent to each other on a ring that constitutes Ar1, and X2 and Ar1 are bonded with atoms adjacent to each other on a ring that constitutes Ar2.
    • 本发明提供一种具有大的短路电流密度和大的光电转换效率的光伏电池。 该光伏电池包括:第一电极; 第二电极; 以及在所述第一电极和所述第二电极之间的有源层; 其中活性层含有具有由式(1)表示的结构单元的化合物:其中Ar 1和Ar 2彼此相同或不同,表示三价芳族烃基或三价杂环基,Ar 1和Ar 1中至少有一个 Ar2为三价杂环基; X1和X2彼此相同或不同,表示-O - , - S - , - C(= O) - , - S(= O) - , - SO2-,-C(R50) - , - Si(R 3)(R 4) - , - N(R 5) - , - (R 6) - , - (R 7) - 或-P(= O) R50,R51,R3,R4,R5,R6,R7和R8彼此相同或不同,表示氢原子,卤素原子或一价有机基团; 并且X1和Ar2与构成Ar1的环彼此相邻的原子键合,并且X2和Ar1与构成Ar2的环彼此相邻的原子键合。