The results show that this coating of glass particles can reduce the optical reflectivity of solar cells, prevent the transparent electrode from overheating and optimize the thickness of the radioactive layer.
Scientists at Russia's ITMO university have combined the features of the electrode and the light trap structure to develop a new solar cell coating that boosts overall power generation efficiency by 20 per cent.
The study was published in the scientific journal Optics Letters.The results show that this coating of glass particles can reduce the light reflection of solar cells, prevent the transparent electrode from being too hot, and optimize the thickness of the radiation layer.
Lead author Mikhail Omelyanovich explains: "in order to generate this kind of coating in the surface of solar cells, we use the method of atomic layer deposition aluminum doped zno thin film preparation, it can be said that these electrodes is built by a a atoms.The results showed that the overall efficiency of the battery increased by 20%.In addition, the electrode applies to a thin-film solar cell for any material other than silicon.
The researchers stressed that the fabrication of the solar cell coating is not complicated and the process is suitable for mass production.
"Three years ago, we tried to cover the surface of solar cells with microspheres," says Omelyanovich. "although the absorptivity was greatly enhanced, the reflectivity was also higher.So, we decided to remove the upper part of the sphere and make something like a mirror that would focus the light on the battery.However, in carrying out this vision we found a better structure.In general, the final result is better than the expected effect estimated by the theory.