Tunable rare earth metal-organic frameworks for complex optical tags
| DWPI Title: Optical tag used for optically tag object, comprises rare earth metal-organic framework comprising high-energy donor rare earth and lower-energy acceptor rare earth, where rare earths are arranged in polynuclear metal clusters interconnected by carboxylic acid-based linkers |
| Abstract: The invention provides a powerful design strategy towards next-generation, multiplexed, lifetime-encoded tags via engineering intermetallic energy transfer in heterometallic metal-organic frameworks based on nonanuclear metal clusters. Precise manipulation of the luminescence decay dynamics over a wide microsecond regime can be achieved owing to the control over metal ordering in these systems. As an example of the invention, a novel, dynamic double encoding method that uses the braille alphabet was achieved by incorporating the materials into photocurable inks patterned on glass and interrogated via digital high-speed imaging. The facile synthesis and interrogation of these heterometallic metal-organic frameworks having complex and tunable optical properties enables next-generation, multiplexed optical tags. |
| Use: Optical tag used for optically tag object (claimed). |
| Advantage: The optical tag can provide powerful materials design strategy that can be expanded to a diverse set of REMOFs with varying organic or metallic constituents, enabling a large library of tags with unique, multilayered encoding. |
| Novelty: Optical tag comprises a rare earth metal-organic framework (REMOF). The REMOF comprises high-energy donor rare earth and lower-energy acceptor rare earth. The rare earths are arranged in polynuclear metal clusters interconnected by carboxylic acid-based linkers. |
| Filed: 12/13/2022 |
| Application Number: US18080044A |
| Tech ID: SD 15351.2 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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