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Reversible Optical Writing and Data Storage in an Anthracene‐Loaded Metal–Organic Framework
Author(s) -
Tu Min,
Reinsch Helge,
RodríguezHermida Sabina,
Verbeke Rhea,
Stassin Timothée,
Egger Werner,
Dickmann Marcel,
Dieu Bjorn,
Hofkens Johan,
Vankelecom Ivo F. J.,
Stock Norbert,
Ameloot Rob
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201813996
Subject(s) - anthracene , flexibility (engineering) , host (biology) , materials science , fluorescence , encryption , metal organic framework , 3d optical data storage , nanotechnology , adsorption , photochemistry , optoelectronics , chemistry , computer science , organic chemistry , optics , physics , computer network , mathematics , biology , ecology , statistics
Metal–organic frameworks (MOFs) enable the design of host–guest systems with specific properties. In this work, we show how the confinement of anthracene in a well‐chosen MOF host leads to reversible yellow‐to‐purple photoswitching of the fluorescence emission. This behavior has not been observed before for anthracene, either in pure form or adsorbed in other porous hosts. The photoresponse of the host–guest system is caused by the photodimerization of anthracene, which is greatly facilitated by the pore geometry, connectivity, and volume as well as the structural flexibility of the MOF host. The photoswitching behavior was used to fabricate photopatternable and erasable surfaces that, in combination with data encryption and decryption, hold promise in product authentication and secure communication applications.