Aggregation-induced heterogeneities in the emission of upconverting nanoparticles at the submicron scale unfolded by hyperspectral microscopy
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Other documents of the author: Gonell, Francisco; Botas, Alexandre M. P.; Brites, Carlos B. S.; Amorós, Pedro; Carlos, Luis D.; Julian-Lopez, Beatriz; Ferreira, Rute A. S.
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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INVESTIGACIONMetadata
Title
Aggregation-induced heterogeneities in the emission of upconverting nanoparticles at the submicron scale unfolded by hyperspectral microscopyAuthor (s)
Date
2019Publisher
Royal Society of ChemistryISSN
2516-0230Bibliographic citation
Nanoscale Adv., 2019, 1, 2537Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionAbstract
Transparent upconverting hybrid nanocomposites are exciting materials for advanced applications such as
3D displays, nanosensors, solar energy converters, and fluorescence biomarkers. This work presents
a simple ... [+]
Transparent upconverting hybrid nanocomposites are exciting materials for advanced applications such as
3D displays, nanosensors, solar energy converters, and fluorescence biomarkers. This work presents
a simple strategy to disperse upconverting b-NaYF4:Yb3+/Er3+ or Tm3+ nanoparticles into low cost,
widely used and easy-to-process polydimethylsiloxane (PDMS)-based organic–inorganic hybrids. The
upconverting hybrids were shaped as monoliths, films or powders displaying in the whole volume Tm3+
or Er3+ emissions (in the violet/blue and green/red spectral regions, respectively). For the first time,
hyperspectral microscopy allows the identification at the submicron scale of differences in the hybrids'
emission colour, due to variations in the relative intensity of the distinct components of the
upconversion spectrum. The effect is attributed to the size distribution of the agglomerates of
nanoparticles, highlighting the importance of studying the emission at submicron scales, since this effect
is not observable in measurements recorded in larger areas. [-]
Is part of
Nanoscale Adv., 2019, 1Investigation project
POCI-01-0145-FEDER007679 (FCT Ref. UID/CTM/50011/2019); MAT2015-64139-C4-2-R; UJI-B2018-71; E92 PRI-AIBPT2011-1010; CENTRO-01-0145-FEDER-000005; E92 PRI-AIBPT2011-1010; MAT2011-27008Rights
Licencia CC-BY-NC
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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