Encoding and decoding nanoscale thermal barcodes for ultrahigh capacity identification systems
Abbreviated Journal Title
Appl. Phys. Lett.
An ultrahigh capacity coding system is created based on the solid to liquid phase changes of a variety of nanoparticles, which are designed and prepared with sharp, discrete melting peaks and encapsulated inside nonmelting shells. A mixture of such thermally-active nanoparticles at designed ratio can be embedded inside an object as a nanoscale barcode that can be decoded by differential thermal scan. The coding capacity depends on the number of melting peaks, which in turn depends on nanoparticle compositions. A coding system with 50 different compositions can generate over 10(15) thermal barcodes, sufficient for many identification applications. (C) 2009 American Institute of Physics. [doi:10.1063/1.3271524]
Applied Physics Letters
"Encoding and decoding nanoscale thermal barcodes for ultrahigh capacity identification systems" (2009). Faculty Bibliography 2000s. 1853.