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Molecular Photovoltaics

Accounts of Chemical Research · 2000 · Vol. 33(5) · pp. 269–277

Anders Hagfeldt✉(École Polytechnique Fédérale de Lausanne)Michaël Grätzel(École Polytechnique Fédérale de Lausanne)

Abstract

The dye-sensitized nanocrystalline injection solar cell employs transition metal complexes for spectral sensitization of mesoporous TiO(2) films together with suitable redox electrolytes or amorphous organic hole conductors. Light harvesting occurs efficiently over the whole visible and near-IR range due to the very large internal surface area of the films. Judicious molecular engineering allows the photoinduced charge separation to occur quantitatively within a few femtoseconds. The certified overall power conversion efficiency of the new solar cell for AM 1.5 solar radiation stands presently at 10.4%.

TiO2 Photocatalysis and Solar Cells Advanced Photocatalysis Techniques Quantum Dots Synthesis And PropertiesMaterials scienceSolar cellNanocrystalline materialFemtosecondPhotovoltaicsOrganic solar cellEnergy conversion efficiencyOptoelectronicsAmorphous solidPhotoinduced charge separation

MeSH terms

Coloring AgentsElectrochemistryKineticsMicroscopy, Electron, ScanningModels, MolecularPhotochemistryQuantum TheorySolar EnergyTitaniumMolecular Structure

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