Companies all over the world are looking for ways to protect their goods fromBut the methods available are
With the help of a laser, scientists add ions of a rare earth metal - erbium.
They create a unique image on the sticker fromsilicone nanofilm. To do this, first, an array of holes is made on the film, invisible to the naked eye. Some of these holes contain erbium ions, others do not. Erbium-filled holes change color under the influence of laser radiation. Thus, they enable scientists to read the image correctly.
Offenders may need a lottime to discover the content of such images. To do this, they will need to penetrate the shipping system, learn to operate the equipment, and learn how to read labels. These shortcuts are made even more secure with several customizable features.
New labels based on ion luminescenceerbium It is characterized by several parameters: intensity, wavelength and service life of the radiation. The combination of these parameters allows you to create additional levels of protection.
The developed system is resistant to chemical andmechanical stress, can also be made on flexible film. According to Ivan Mukhin, head of a laboratory at St. Petersburg Academic University and an ITMO researcher, these factors increase the technology's potential for introduction into the economic sector right now.
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Erbium is a chemical element with atomic number 68, belongs to lanthanides and rare earth elements.