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POLYMERIC PHOTOVOLTAIC CELL WITH INVERTED STRUCTURE COMPRISING A CONJUGATED POLYMER COMPRISING AN ANTHRADITHIOPHENE DERIVATIVE
POLYMERIC PHOTOVOLTAIC CELL WITH INVERTED STRUCTURE COMPRISING A CONJUGATED POLYMER COMPRISING AN ANTHRADITHIOPHENE DERIVATIVE
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机译:具有倒置结构的聚合物光伏电池,包括包含蒽噻吩衍生物的共轭聚合物
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摘要
Polymeric photovoltaic cell (or solar cell) with inverted structure comprising: - an anode; - an anodic buffer layer; - an active layer comprising at least one photoactive organic polymer as electron-donor and at least one electron-accepting organic compound; - a cathodic buffer layer; - a cathode; wherein: - said at least one photoactive organic polymer is selected from conjugated polymers comprising an anthraditiophenic derivative having a general formula (I): wherein: - Z, equal to or different from each other, preferably equal to each other, represent a sulphur atom, an oxygen atom, a selenium atom; - Y, equal or different from each other, preferably equal to each other, represent a sulphur atom, an oxygen atom; - R1, equal or different from each other, preferably equal to each other, are selected from amino groups -N-R4R5 wherein R4 represents a hydrogen atom, or is selected from alkyl groups C1-C20, preferably C2-C10, linear or branched, or is selected from 20 optional substituted cycloalkyl groups and R5 is selected from alkyl groups C1-C20, preferably C2-C10, linear or branched, or is selected from optional substituted cycloalkyl groups; are selected from R6-O-[CH2-CH2-O]n- polyethylenoxyl groups in which R6 represents a hydrogen atom, or is selected from alkyl groups C1-C20, preferably C2-C10, linear or branched, and n is an integer number between 1 and 4; or are selected from -O-R7 groups in which R7 represents a hydrogen atom, or is selected from alkyl groups C1-C30, preferably C2-C24, linear or branched; - R2, equal or different from each other, preferably equal to each other, represent a hydrogen atom; or are selected from C1-C20, alkyl groups, preferably C2-C10, linear or branched; or are selected from -COR10 groups in which R10 is selected from C1-C20 alkyl groups, preferably C2-C10, linear or branched; or are selected from -COOR11 groups in which R11 is selected from C1-C20 alkyl groups, preferably C2-C10, linear or branched; or are selected from optional substituted aryl groups; or are selected from optional substituted heteroaryl groups; - R3, equal or different from each other, preferably equal to each other, represent a hydrogen atom; or are selected from C1-C20, alkyl groups, preferably C2-C10, linear or branched; or are selected from -COR10 groups in which R10 is selected from C1-C20 alkyl groups, preferably C2-C10, linear or branched; or are selected from -COOR11 groups in which R11 is selected from C1-C20 alkyl groups, preferably C2-C10, linear or branched; or are selected from optional substituted aryl groups; or are selected from optional substituted heteroaryl groups; - Q, equal or different from each other, preferably equal to each other, represent a nitrogen atom; or represent a C-R3 group in which R3 has the same meanings as above; - n is an integer number between 10 and 500, preferably between 20 and 300; - said at least organic electron-accepting compound can be selected from non-fullerenic, optionally polymeric, compounds, such as, for example, compounds based on perylene-diimides or naphthalene-diimides and fused aromatic rings; indacenotiophenes with electron-poor terminal groups; compounds having an aromatic core capable of symmetrically rotating, for example, derivatives of corannulene or truxenone. Said polymeric photovoltaic cell (or solar cell) with inverted structure shows good values of power conversion efficiency (PCE) (h)and can be advantageously used in the construction of photovoltaic modules (or solar modules), either on a rigid support or on a flexible support.
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