Title

Encoding and decoding nanoscale thermal barcodes for ultrahigh capacity identification systems

Authors

Authors

Z. Y. Ma; Y. Hong; M. H. Zhang;M. Su

Comments

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Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

Physics, Applied

Abstract

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]

Journal Title

Applied Physics Letters

Volume

95

Issue/Number

23

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

3

WOS Identifier

WOS:000272627700078

ISSN

0003-6951

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