A series of six new subphthalocyanines (SubPcs) bearing an ethynylcarboxyphenyl anchoring unit and decorated with a variety of substituents at the peripheral position of the macrocycle have been synthesized in order to investigate the effect of the peripheral substituent on the performance of dye-sensitized solar cells.
A series of symmetrically substituted subphthalocyanine derivatives with diverse substituent such as electron-donating or electron-withdrawing moieties at the peripheral position have been synthesized and their photophysical and electrochemical properties have been investigated. Solution-processed bulk heterojunction (BHJ) organic solar cells using SubPc derivatives as electron donor and fullerene derivative PCBM as an electron acceptor in the active layer were fabricated and characterized to evaluate the photovoltaic behavior of these molecules.
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