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Full Description
Renewable energies have become an attractive option to overcome the energy demands in sustainable and affordable ways. It has been estimated that one-third of the total renewable energies would be generated from photovoltaics (PVs). A solar or PV cell is a device that directly converts sunlight into electricity by taking benefit of the photoelectric effect. In the third-generation solar PVs, dye-sensitized solar cells (DSSCs) are believed to be the most promising and have attracted wide attention. The optimization of a DSSC is focused on four main components: (i) metal oxide semiconductor, (ii) photosensitizer, (iii) redox couple electrolyte, and (iv) counter electrode. Among these, the counter electrode undertakes three functions: (i) as a catalyst, (ii) as a positive electrode of primary cells, and (iii) as a mirror. To obey these functions, the electrode material should have high catalytic activity, high conductivity, high reflectivity, high surface area, and electrochemical and mechanical stability. To improve the performance of DSSCs, many scientists have developed new counter electrodes made of platinum, carbon materials, transition metals, conductive polymers, and composites. This book converses the various aspects of materials for the fabrication of counter electrodes especially for the DSSCs.
Contents
1. Functions of Counter Electrode and Its Characterizations 2. Metal Oxides as Counter Electrode Materials
3. Transition Metal Carbides as Counter Electrode Materials 4. Transition Metal Nitrides as Counter Electrode Materials 5. Transition Metal Sulphides as Counter Electrode Materials 6. Chalcogenides as Counter Electrode Materials 7. Carbon Nanotubes and Their Composites as Counter Electrode Materials 8. Carbon Nanofibers and Their Composites as Counter Electrode Materials 9. Quantum Dots as Counter Electrode Materials
