Photovoltage study of charge injection from dye molecules into transparent hole

2020-02-15 00:03:16

electron charge injection dye hole

责任者: Mahrov, B.;Boschloo, G.;Hagfeldt, A.;Dloczik, L.;Dittrich, T. 单位: Dept. of Phys. Chem., Univ. of Uppsala, Sweden 来源出处: Applied Physics Letters(Appl. Phys. Lett. (USA)),2004/06/28,84(26):5455-7 摘要: Transient and spectral photovoltage (PV) have been investigated for charge injection from a dye [Ru(dcbpyH2)2(NCS)2] into transparent hole ( CuSCN, CuI, CuAlO2) and electron ( TiO2, SnO2:F) conductors. The PV signal rises to a maximum within 10 ns to 10 μs, depending on the transparent hole or electron conductor and on the mechanism of charge separation. The efficiency of hole and electron injection is of the same order while the effective lifetimes of injected charge vary between several μs and 1 ms for the samples used. The thresholds for charge injection from the dye range between 1.6 and 1.8 eV depending on the material on which the dye is adsorbed 关键词: adsorption;carbon compounds;charge injection;copper compounds;dyes;fluorine;nanostructured materials;porous materials;sulphur compounds;surface photovoltage;tin compounds;titanium compounds;photovoltage analysis;charge injection;dye molecules;transparent hole conductors;transparent electron conductors;transient photovoltage;spectral photovoltage;charge separation;hole injection;electron injection;effective lifetimes;adsorption;CuSCN;CuI;CuAlO2;TiO2;SnO2:F