From synthesis to fabrication: Engineering thin translucent films with green persistent luminescent nanoparticles

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dc.contributor.authorFritzen D.L.
dc.contributor.authorNardy G.
dc.contributor.authorPortes M.C.
dc.contributor.authorGiordano L.
dc.contributor.authorBonturim E.
dc.contributor.authorTeixeira V.C.
dc.contributor.authorRodrigues L.C.V.
dc.date.accessioned2024-03-12T19:07:53Z
dc.date.available2024-03-12T19:07:53Z
dc.date.issued2023
dc.description.abstract© 2023Green-emitting ZnGa2O4:Mn2+ persistent luminescent nanoparticles were synthesized via a solvothermal method followed by a microwave-assisted sintering at 1150 °C. The obtained cubic-like particles averaged 62 ± 16 nm by Transmission Electron Microscopy (TEM) and presented afterglow for up to 2 h after a 5 min excitation in the UV. By Electron Paramagnetic Resonance (EPR), it was observed that the Mn2+ dopant replaces uniquely Zn2+ sites during synthesis. The obtained particles were dispersed with hydroxypropyl methylcellulose (HPMC) in water to create thin films by drop-casting. The films with different concentrations of nanoparticles (1 g/m2, 10 g/m2 and 100 g/m2) had average visible transmittances between 20% and 24%, and presented persistent luminescence after UV excitation, with longer duration by increasing nanoparticle concentration. By synchrotron X-ray Fluorescence (XRF) nanomapping of these films it is possible to see clusters of up to 6 μm of the nanoparticles in the film due to water pockets during film-casting. The X-ray Excited Optical Luminescence (XEOL) showed only Mn2+ emission and the XEOL-XRF mapping proved the integrity of the nanoparticles after film fabrication. By combining the solvothermal method, microwave-assisted sintering, and drop casting, this study establishes a promising pathway for the development of advanced flexible and translucent persistent luminescent composites.
dc.description.volume20
dc.identifier.doi10.1016/j.omx.2023.100271
dc.identifier.issn2590-1478
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/33988
dc.relation.ispartofOptical Materials: X
dc.rightsAcesso Aberto
dc.titleFrom synthesis to fabrication: Engineering thin translucent films with green persistent luminescent nanoparticles
dc.typeArtigo
local.scopus.citations2
local.scopus.eid2-s2.0-85173174527
local.scopus.subjectDrop casting
local.scopus.subjectHydroxypropyl methylcellulose
local.scopus.subjectLuminescent nanoparticle
local.scopus.subjectMicrowave-assisted
local.scopus.subjectSolvothermal method
local.scopus.subjectSynthesised
local.scopus.subjectTranslucents
local.scopus.subjectX ray fluorescence
local.scopus.subjectX-ray excited optical luminescence
local.scopus.subjectZn 2+
local.scopus.updated2024-12-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85173174527&origin=inward
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