A team of physicists has developed a new method of storing information in fully transparent plastic foils. Prof. Reineke and his LEXOS team work with simple plastic foils with a thickness of less than ...

Product identification tags, from barcodes to QR codes, have become ubiquitous, to the point of being essentially invisible to consumers. Now comes a type that’s literally so. The BrightMarker is an ...

A 3D-printing technique can incorporate invisible tags into objects. The process could be used to create tags with the convenience of QR codes without the unsightly appearance, as well as to turn ...

A luminescent tag, contactless printed onto a plastic foil. The light emitting layer is thinner than a human hair. The imprint can be erased and replaced by another pattern. (Image: M. Gmelch and H.

Prof. Reineke and his LEXOS team work with simple plastic foils with a thickness of less than 50 μm, which is thinner than a human hair. In these transparent plastic foils, they introduce organic ...