Nonlinear Optics to Glucose Sensing: Multifunctional Nitrogen and Boron Doped Carbon Dots with Solid-State Fluorescence in Nanoporous Silica Films
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Otros documentos de la autoría: Kiprop Kipnusu, Wycliffe; Doñate-Buendía, Carlos; Fernández-Alonso, Mercedes; Lancis, Jesús; Mínguez-Vega, Gladys
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comunitat-uji-handle3:10234/43643
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INVESTIGACIONMetadatos
Título
Nonlinear Optics to Glucose Sensing: Multifunctional Nitrogen and Boron Doped Carbon Dots with Solid-State Fluorescence in Nanoporous Silica FilmsAutoría
Fecha de publicación
2020Editor
WileyISSN
0934-0866; 1521-4117Cita bibliográfica
KIPNUSU, Wycliffe Kiprop, et al. Nonlinear Optics to Glucose Sensing: Multifunctional Nitrogen and Boron Doped Carbon Dots with Solid‐State Fluorescence in Nanoporous Silica Films. Particle & Particle Systems Characterization, 2020, p. 2000093.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://onlinelibrary.wiley.com/doi/10.1002/ppsc.202000093Versión
info:eu-repo/semantics/publishedVersionResumen
Multifunctional triple color photoluminescent (PL) nitrogen–boron doped carbon quantum dots (CQDs) with high quantum yield (QY) of 58% are fabricated by one step femtosecond pulsed laser irradiation of a single precursor ... [+]
Multifunctional triple color photoluminescent (PL) nitrogen–boron doped carbon quantum dots (CQDs) with high quantum yield (QY) of 58% are fabricated by one step femtosecond pulsed laser irradiation of a single precursor (2‐aminopyrimidine‐5‐boronic acid) in solution. In situ generated non‐linear and linear emissions are used to monitor CQDs formation which results in enhanced second harmonic generation, two photon absorption (2PA), and linear fluorescence; implying triple mode emission. These CQDs present blue, green, and possible red color rendering which are mostly independent to the respective excitation wavelengths (λ) with large stokes shift of 100 nm. Solid‐state photoluminescence with QY of 46% is achieved by incorporating CQDs into thin transparent nanoporous silica (pSiO2) films (thickness 50 µm) to form a CQDs‐pSiO2 composite which exhibits reverse saturable absorption at λ = 800 nm with 2PA coefficient and excited state absorption cross‐section of 4.94 × 10−10 m W−1 and 6.23 × 10−17 cm2, respectively. CQDs‐pSiO2 is also sensitive to glucose concentration down to 1.0 mg dL−1 in a wide linear range up to 100 mg dL−1. This work therefore demonstrates facile, controllable, and up‐scalable bottom‐up fabrication of CQDs forming multifunctional solid‐state CQDs‐pSiO2 with proven application in optical limiting and glucose sensing. [-]
Publicado en
Part. Part. Syst. Charact. 2020Proyecto de investigación
UJI‐B2016‐19, H2020 Marie Skłodowska‐Curie Actions. Grant Number: 751249Derechos de acceso
info:eu-repo/semantics/openAccess
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