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Monday, 1 May 2023

Researchers enhance conversion efficiency of thermoelectric devices

Researchers enhance conversion efficiency of thermoelectric devices

Researchers enhance conversion efficiency of thermoelectric devices

Thermoelectric devices are a type of technology that can convert heat into electricity. They have the potential to be a clean and efficient source of energy, but their conversion efficiency has been limited. However, researchers have recently made significant progress in enhancing the conversion efficiency of thermoelectric devices.

How thermoelectric devices work

Thermoelectric devices work based on the Seebeck effect, which is the phenomenon of generating an electric current when there is a temperature difference between two materials. The device consists of two materials, one of which is a good conductor of electricity and the other is a poor conductor. When there is a temperature difference between the two materials, an electric current is generated.

The challenge of conversion efficiency

The conversion efficiency of thermoelectric devices has been limited by a number of factors. One of the main challenges is the trade-off between the electrical conductivity and the thermal conductivity of the materials used in the device. Materials that are good conductors of electricity are often also good conductors of heat, which means that they are not efficient at converting heat into electricity.

Recent breakthroughs

Researchers have recently made significant progress in enhancing the conversion efficiency of thermoelectric devices. One approach has been to use nanotechnology to engineer the materials used in the device. By controlling the size and shape of the materials at the nanoscale, researchers have been able to improve their electrical conductivity while reducing their thermal conductivity.

Another approach has been to use complex materials that have a unique crystal structure. These materials have been found to have a high conversion efficiency due to their ability to scatter phonons, which are the particles that carry heat.

The potential of thermoelectric devices

The enhanced conversion efficiency of thermoelectric devices has the potential to revolutionize the way we generate and use energy. They could be used to convert waste heat from industrial processes into electricity, or to power small electronic devices without the need for batteries. They could also be used in vehicles to convert the heat generated by the engine into electricity, improving fuel efficiency and reducing emissions.

Conclusion

The recent breakthroughs in enhancing the conversion efficiency of thermoelectric devices are a significant step forward in the development of clean and efficient energy technologies. With further research and development, thermoelectric devices could become a key part of our energy mix, helping to reduce our reliance on fossil fuels and mitigate the impacts of climate change.



https://www.lifetechnology.com/blogs/life-technology-technology-news/researchers-enhance-conversion-efficiency-of-thermoelectric-devices

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