Dye-Sensitized Solid-State Photovoltaic Cells Based on Dye Multilayer−Semiconductor Nanostructures
作者： V. P. S. Perera , P. K. D. D. P. Pitigala , P. V. V. Jayaweera , K. M. P. Bandaranayake , K. Tennakone
DOI: 10.1021/JP0348979
关键词: Photocurrent 、 Titanium dioxide 、 Monolayer 、 Quantum tunnelling 、 Materials science 、 Acridine yellow 、 Heterojunction 、 Thiocyanate 、 Nanocrystalline material 、 Optoelectronics
摘要: The efficiency of dye-sensitized solar cells may be further improved if ways are found to broaden the spectral response resolving fundamental issues involved. Here we report construction solid-state photovoltaic with heterostructure configurations: [1] n-TiO2/D1/p-CuSCN, [2] n-TiO2/p-CuSCN/D2/ p-CuSCN and [3] n-TiO2/D1/p-CuSCN/D2/p-CuSCN, where n-TiO2 is a ∼10 μm thick nanocrystalline film titanium dioxide, thin (∼ 2 nm) 10 μm) films copper(I) thiocyanate. Monolayers dyes D1 (Fast Green) D2 (Acridine Yellow) coated on TiO2 p-CuSCN, respectively. cell configuration delivered highest efficiency, open-circuit voltage, short-circuit photocurrent as it effectively utilizes light adsorbed by D2. mechanism operation involves tunneling energetic electrons holes liberated in photoexcitations through barrier p-CuSCN. strategy adopted indicates possibility o...
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