000147783 001__ 147783
000147783 005__ 20250103153614.0
000147783 0247_ $$2doi$$a10.1002/adom.202400965
000147783 0248_ $$2sideral$$a141269
000147783 037__ $$aART-2024-141269
000147783 041__ $$aeng
000147783 100__ $$aMartín, Raúl
000147783 245__ $$aDisrupting J-Aggregation in Triazatruxene Dimers to Develop Responsive Luminescent Inks for Anti-Counterfeiting Applications
000147783 260__ $$c2024
000147783 5060_ $$aAccess copy available to the general public$$fUnrestricted
000147783 5203_ $$aThe fight against counterfeiting is a crucial concern for economies around the world, underscoring the urgent need for effective measures to ensure the legitimacy of products and documents. Luminescent security inks have emerged as effective tools in this battle. The third generation of these inks, incorporating stimuli‐responsive organic materials, enables unique efficiency. In this work, the stimuli‐responsive behavior of three trialkylated triazatruxene dimers (TRI1, TRI2, and TRI3), endowed with N‐alkyl chains of different length is investigated. Among them, TRI3, with three flexible dodecyl chains, shows remarkable stimuli‐responsive fluorescence that is attributed to thermally or shear‐induced phase transitions between a tetragonal columnar phase and a discotic‐nematic liquid crystal phase. Such transformation involves the breakdown of highly emissive J‐aggregates with a strong influence on the resulting emissive color. Interestingly, these stimuli‐triggered transformations are spontaneously reversed, which renders this compound very interesting in the search of third‐generation security inks.
000147783 536__ $$9info:eu-repo/grantAgreement/ES/AEI/CEX2023-001286-S$$9info:eu-repo/grantAgreement/ES/AEI/PID2022-139548NB-I00$$9info:eu-repo/grantAgreement/ES/AEI/PID2023-146811NA-I00$$9info:eu-repo/grantAgreement/ES/AEI/PID2023-150022NB-I00$$9info:eu-repo/grantAgreement/ES/DGA/E47-23R
000147783 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000147783 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000147783 700__ $$aEcheverri, Marcelo
000147783 700__ $$aGonzález, Francisco
000147783 700__ $$ade Andrés, Alicia
000147783 700__ $$aRuiz Delgado, M. Carmen
000147783 700__ $$0(orcid)0000-0002-8932-9085$$aConcellón, Alberto$$uUniversidad de Zaragoza
000147783 700__ $$0(orcid)0000-0001-9866-6633$$aSerrano, José Luis$$uUniversidad de Zaragoza
000147783 700__ $$aGómez-Lor, Berta
000147783 7102_ $$12013$$2765$$aUniversidad de Zaragoza$$bDpto. Química Orgánica$$cÁrea Química Orgánica
000147783 773__ $$g(2024), 2400965 [9 pp.]$$pAdv. opt. mater.$$tAdvanced Optical Materials$$x2195-1071
000147783 8564_ $$s4217988$$uhttps://zaguan.unizar.es/record/147783/files/texto_completo.pdf$$yVersión publicada
000147783 8564_ $$s2803152$$uhttps://zaguan.unizar.es/record/147783/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000147783 909CO $$ooai:zaguan.unizar.es:147783$$particulos$$pdriver
000147783 951__ $$a2025-01-03-13:21:26
000147783 980__ $$aARTICLE