Nanotag luminescent fingerprint anti-counterfeiting technology

Michal Jędrzej Radziwon, Horst-Günter Rubahn, Stefan Johansen, Luciana Tavares

Research output: Contribution to journalJournal articleResearchpeer-review


We describe a method to fabricate, transfer and validate via image processing nanofibre- based, unique security marks (“nanotags”) for anti-counterfeiting purposes. Epitaxial surface growth of oligophenylenes on a heated muscovite mica crystal results in a thin film of mutually aligned nanofibres with dimensions of tens of nanometres in height, hundreds of nanometres in width and tens to hundreds of micrometeres in length. By applying a shadow mask, a film pattern is generated which contains only sparse, randomly grown nanofiberes, which in turn represent a unique ‘fingerprint’ of the growth area. This fingerprint can be transferred on an adhesive tape as a label of a product, imaged using low magnification microscopy, digitalised and stored in a database. Infrared surface heating, enforced cooling and load lock transfer makes the fabrication process fast and scalable to mass production.
Original languageEnglish
JournalNanoscale Research Letters
Issue number1
Pages (from-to)262
Number of pages8
Publication statusPublished - 2012


  • anti-counterfeit
  • organic nano-fibres
  • molecular beam epitaxy
  • process optimisation


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