US 12,410,197 B2
Tunable rare earth metal-organic frameworks for complex optical tags
Dorina F. Sava Gallis, Albuquerque, NM (US); Lauren E. S. Rohwer, Albuquerque, NM (US); Kimberly Butler, Albuquerque, NM (US); and Jacob Ivan Deneff, Albuquerque, NM (US)
Assigned to National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)
Filed by National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)
Filed on Dec. 13, 2022, as Appl. No. 18/080,044.
Application 18/080,044 is a continuation in part of application No. 17/479,710, filed on Sep. 20, 2021, granted, now 11,767,468.
Claims priority of provisional application 63/086,419, filed on Oct. 1, 2020.
Prior Publication US 2024/0409561 A1, Dec. 12, 2024
Int. Cl. C07F 5/00 (2006.01); C01B 39/00 (2006.01); G06K 19/06 (2006.01); G06K 7/10 (2006.01)
CPC C07F 5/00 (2013.01) [C01B 39/00 (2013.01); G06K 19/0614 (2013.01); G06K 7/10544 (2013.01); G06K 19/06084 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An optical tag comprising a rare earth metal-organic framework (REMOF), the REMOF comprising at least one high-energy donor rare earth and at least one lower-energy acceptor rare earth, wherein the rare earths are arranged in nonanuclear heterometallic clusters interconnected by carboxylic acid-based linkers.