000126795 001__ 126795
000126795 005__ 20241125101141.0
000126795 0247_ $$2doi$$a10.1002/admt.202300571
000126795 0248_ $$2sideral$$a134127
000126795 037__ $$aART-2023-134127
000126795 041__ $$aeng
000126795 100__ $$aRoyo, Raquel$$uUniversidad de Zaragoza
000126795 245__ $$aHighly Efficient Photoninitiators Based on 4H-Pyranylidene Derivatives for Two-Photon Laser Printing
000126795 260__ $$c2023
000126795 5060_ $$aAccess copy available to the general public$$fUnrestricted
000126795 5203_ $$aA series of four donor–acceptor–donor derivatives bearing 4H-pyranylidene and 4-methylcyclohexan-1-one units as donor and acceptor groups respectively is designed, synthesized, and photophysically characterized. Both experimental and theoretical studies reveal good two-photon absorption (2PA) properties for these systems. Decoration of the exocyclic position of the 4H-pyranylidene moiety with a thiophene ring results in high 2PA cross-section values (σ2PA) ≈700 nm, and remarkably, in the region between 900 and 1000 nm. Furthermore, all chromophores are evaluated as photoinitiators (PIs) for two-photon-laser printing at 780 nm, showing superior performance compared to the commonly used commercially available PI, phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide. Among the studied PIs, the ones equipped with a thiophene unit at the exocyclic position of the 4H-pyranylidene moiety exhibit the highest efficiency, enabling fast printing using low laser powers with even lower concentrations of PI. Overall, this study shows the great potential of this new class of PIs for application in the field of 3D nanoprinting.
000126795 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E47-20R$$9info:eu-repo/grantAgreement/ES/DGA/E47-23R$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-104293GB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-104307GB-I00-AEI-10.13039-501100011033
000126795 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000126795 590__ $$a6.4$$b2023
000126795 592__ $$a1.694$$b2023
000126795 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b100 / 439 = 0.228$$c2023$$dQ1$$eT1
000126795 593__ $$aIndustrial and Manufacturing Engineering$$c2023$$dQ1
000126795 593__ $$aMechanics of Materials$$c2023$$dQ1
000126795 593__ $$aMaterials Science (miscellaneous)$$c2023$$dQ1
000126795 594__ $$a10.2$$b2023
000126795 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000126795 700__ $$aMainik, Philipp
000126795 700__ $$aBenitez-Martin, Carlos
000126795 700__ $$0(orcid)0000-0002-3206-9868$$aAndreu, Raquel$$uUniversidad de Zaragoza
000126795 700__ $$aBlasco, Eva
000126795 700__ $$aNajera, Francisco
000126795 700__ $$0(orcid)0000-0001-9814-0834$$aVillacampa, Belén$$uUniversidad de Zaragoza
000126795 7102_ $$12013$$2765$$aUniversidad de Zaragoza$$bDpto. Química Orgánica$$cÁrea Química Orgánica
000126795 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000126795 773__ $$g8, 23 (2023), 2300571 [10 pp.]$$pAdv. Mater. Technol.$$tAdvanced Materials Technologies$$x2365-709X
000126795 8564_ $$s1511934$$uhttps://zaguan.unizar.es/record/126795/files/texto_completo.pdf$$yVersión publicada
000126795 8564_ $$s2438929$$uhttps://zaguan.unizar.es/record/126795/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000126795 909CO $$ooai:zaguan.unizar.es:126795$$particulos$$pdriver
000126795 951__ $$a2024-11-22-12:02:43
000126795 980__ $$aARTICLE