What Are the Main Types of Energy Harvesting Devices?
There are several types of energy harvesting devices that use nanotechnology:
Photovoltaic Devices Nanotechnology enhances solar cells by improving light absorption and conversion efficiency. For example, perovskite solar cells use nanoscale materials to achieve high efficiency at a lower cost.
Thermoelectric Devices These devices convert heat into electricity. Nanomaterials increase the thermoelectric efficiency by reducing thermal conductivity while maintaining electrical conductivity.
Piezoelectric Devices Nanotechnology enhances piezoelectric materials, which generate electricity from mechanical stress. Zinc oxide nanowires are often used for their high piezoelectric response.
Triboelectric Devices These devices generate electricity from friction. Nanostructured materials can enhance the triboelectric effect, making these devices more efficient.
