申请人:COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
公开号:US20140290748A1
公开(公告)日:2014-10-02
The present invention relates to an organic colorant corresponding to one of the following structures (I) or (II):
eD-pi-conjugated chromophore-L-A (I)
A-L-pi-conjugated chromophore-eD (II)
in which eD represents an electron donor segment; L represents a covalent bond or a spacer segment; A represents an electron attractor segment able to form a covalent bond with a semi-conductor; the pi-conjugated chromophore comprising at least two aromatic rings, at least one of which is a thiophene, selenophene or furan type ring. The present invention relates to the use thereof as photosensitizer in a photovoltaic device and said photovoltaic device.
本发明涉及与以下结构(I)或(II)之一相对应的有机染料:
eD-π-共轭色团-L-A (I)
A-L-π-共轭色团-eD (II)
其中,eD代表电子给体片段;L代表共价键或间隔片段;A代表能够与半导体形成共价键的电子吸引片段;π-共轭色团包括至少两个芳香环,其中至少一个是噻吩、硒吩或呋喃型环。本发明涉及将其用作光伏器件中的光敏剂以及该光伏器件。