As science knows, the sun emits light in a very wide spectrum, and it is not limited to what we see. Each photon, which is light, has a certain energy, and the task of the solar battery is to "catch" the energy of the photon and rework it into a current that "flows" through our sockets.
Half of the solar energy reaches the ground in the infrared region. Using quantum dots, we can process the energy of photons in this spectrum in the same way as others. Part of the principles of solar cells is that different particles are able to capture light waves (photons) of different wavelengths. And quantum dots, as we know, due to the peculiarities of their synthesis and changing the working area, depending on the size, are able to capture and transform a wide spectrum of waves. In addition, the use of QD is more rational in terms of cost, given the growth rate of demand for these particles.

By 2050, the share of electricity in energy consumption will increase from 18% to 40%, and the share of renewable energy sources to 85%! (CleanTechnica) Scientists of many countries are struggling for refusing to use coal and oil as a source of energy, since this really affects the overall ecological situation in the world. Therefore, every find that contributes to a quick approach to improving the level of ecology is welcomed by scientific institutions and attracts investors. Quantum dots are on this list today.

Another idea that allows you to get electricity in everyday life is connected with windows. A transparent layer with quantum dots is built into the window frame and recycles some photons of sunlight into electricity. Companies that are currently engaged in the development of such solutions have already achieved an efficiency factor of 3.2%. Moreover, points based on non-toxic elements are used, that is, such devices are quite applicable in everyday life. Only the issue of high cost remains open, but this is definitely a temporary difficulty.
The idea of using sunlight in this way is not new, but the particles that were used for this imposed a number of limitations. They were either toxic, or distorted the light, or were completely ineffective. Quantum dots allowed to overcome these obstacles.



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