Carbon Nanotubes in Solar Panel Technology

This paper introduces the advancement in the solar panel technology. It presents about the usage of the carbon nanotubes or graphite instead of silicon in solar panels. These carbon nanotubes are used for photo conversion and a counter electrode construction, which are placed in liquid electrolyte through a (reduction and oxidation) redox reaction. The silicon semiconductors in a solar cell are geared toward taking infrared light and converting it directly to electricity. Meanwhile, the visible spectrum is lost as heat and longer wavelengths pass through unexploited. A new nano-material being developed by a group of researchers spread across the country could act as a “thermal emitter,” making solar power significantly more efficient by scooping up more of that wasted energy. The infrared part of light is relatively easy for conventional high-efficiency solar cells to convert to electricity, and the thermal emitter approach works within that framework. A thermal emitter isn’t a parallel system for deriving electricity directly from the sun’s rays. Instead, this is an application or so called thermo photovoltaic principals. Researchers have estimated a theoretical 80% efficiency rating — much higher than the mid-30s where most silicon-based solar panels are stuck.

The need for power in remote locations has given rise to the need for a more portable solar cell. Organic solar cells have shown great potential for the solution. The problem lies in the inadequate efficiency currently found in organic solar cells.

There is more to solar radiation than meets the eye: sun- burn develops from unseen UV radiation, while we sense infrared radiation as heat on our skin, though invisible to us. Solar cells also ‘see’ only a portion of solar radiation: approximately 20 percent of the energy contained in the solar spectrum is unavailable to cells made of silicon – they are unable to utilize a part of the infrared radiation, the short- wavelength IR radiation, for generating power.

    2 reviews
  • Raj Janorkar

    Carbon Nanotubes in Solar Panel Technology

    2 years ago
  • Shyamala M

    Is PPT of carbon nanotubes available?

    3 years ago