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Quantum Dot or Nano Crystalline Solar Cells

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Quantum dot solar cells are basically nano crystalline cells. These cells used a thin layer of nano materials over the substrate. The substrate is usually made of silicon.

Efficiency of Quantum dot Solar cells

These cells are much more efficient than any other kind of cells. They can produce enormous energy from just a single photon of light. Photons are the packets of light. They can be considered as building blocks just like atom is the building block of matter.

Prediction of National Renewable energy laboratory 2005

In 2005 researchers and scientists predicted about the extra ordinary capabilities of this emerging technology. They also claimed to be able to achieve an efficiency of 65% with quantum dot or nano crystalline solar cells.

Formation of Nano crystalline or Quantum dot Solar cells

The formation of these solar cells includes following steps.

  • A silicon substrate is required first of all.
  • The silicon substrate can be obtained in any way through ingots or something else.
  • The cells are not totally made of nano material.
  • A thin coating of nano material has to be done over the substrate.

Spin coating

Recently, new and more advanced methods of developing nano crystalline or quantum dot solar cells have been established. Spin coating is the most important among these.

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