Russian scientists from MIPT have created safe colloidal quantum dots that can replace cadmium in the production of televisions and monitors. Cadmium is a harmful substance, so researchers are looking for safer materials.
The new method allows obtaining quantum dots from nanocrystals of copper, indium and sulfur, which are available in Russia. Decene-1 is used for this. This substance is easy to produce in our country. Scientists have for the first time obtained a sulfur precursor based on decene-1, which was previously impossible due to the lack of necessary substances.
Quantum dots created using decene-1 can be used in various devices, including ultraviolet light detectors and monitors. Chemists at MIPT dissolved elemental sulfur in decene-1 and interacted with indium salts, which led to the formation of pyramid-shaped nanoparticles that effectively interact with light.
Although the new quantum dots are not yet as effective as those based on cadmium and selenium, they are of interest for future Russian developments. According to Ivan Shuklov, a senior researcher at MIPT, the creation of domestic sulfur precursors is of great importance for the chemical industry in Russia.
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