Dr. Debdas Ray's group develops invisible security ink for data storage/ protection | Shiv Nadar University

Dr. Debdas Ray's group develops invisible security ink for data storage/ protection

Featured
16 Aug 2019
  • Writing with invisible ink

Harsh Bhatia and Dr. Debdas Ray have devised a simple, general strategy aimed at the development of invisible security ink for data storage/protection application.

In an article published in the Journal of Physical Chemistry C, Ph.D.student Harsh Bhatia and Dr. Debdas Ray, Associate Professor of Chemistry, showed a simple (general) strategy aimed at the development of invisible security ink for data storage/protection application. For this, coupe of prerequisites were installed in single-component organic systems. For the first time they have developed single component organic systems (easy to cook, cheaper, simple) that fulfill the requirements of invisible security ink application. These challenging prerequisites are a) white fluorescence that cover visible range, b) white phosphorescence that cover visible range, and c) afterglow in the dark.

Using these molecules as ink, they could write Indian Rupee symbol(₹) and 'SNU' (character) on the paper (white background). Under daylight characters are invisible. Exposing them to different form of light clear pattern of the characters are visible by bare eyes. You may refer to the picture for your ready reference.

Link to paper

Directions