White and yellow light emission from ZrO2:Dy3+ nanocrystals synthesized by a facile chemical technique

Báez‐Rodríguez, A.; Albarrán-Arreguín, D.; García-Velasco, A.C.; Álvarez-Fregoso, O.; Garcı́a-Hipólito, M.; Álvarez-Pérez, Marco Antonio; Zamora‐Peredo, L.; Falcony, C.

doi:10.1007/s10854-018-9105-1

Cited by 8 publications

(3 citation statements)

References 33 publications

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“…It is evident that HfO 2 nanoparticles doped with only Dy 3+ ion show longer lifetime value of ≈0.6 ms. The estimated τ m value agrees well with the reported value for Dy 3+ ion characteristic emission at 577 nm . However, after doping 0.1 at% of Sm, keeping Dy concentration fixed, τ m decreases to ≈0.5 ms which remains almost constant up to 0.5 at% of Sm.…”

Section: Resultssupporting

confidence: 89%

“…The estimated τ m value agrees well with the reported value for Dy 3+ ion characteristic emission at 577 nm. [43,44] However, after doping 0.1 at% of Sm, keeping Dy concentration fixed, τ m decreases to ≈0.5 ms which remains almost constant up to 0.5 at% of Sm. At 1 and 2 at% of Sm concentration, τ m further shortens and reaches ≈0.4 ms showing ≈30% reduction in τ m value.…”

Section: Time Resolved Decay Curvesmentioning

confidence: 99%

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Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties

Sandeep

Bahadur

Rath

2019

Part & Part Syst Charact

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The development of latent fingerprints (LFPs) detected at the site of crime is considered as an imperative physical evidence in forensic investigations. Herein, a rapid and cost‐effective approach using nonhazardous Dy and Sm codoped HfO2 nanophosphors is demonstrated to be utilized for LFP imaging. Sol–gel method can produce Dy and Sm codoped HfO2 of monoclinic phase with crystallite size ranging from ≈10 to 25 nm. While selected area electron diffraction and lattice spacing calculated from high‐resolution transmission electron microscopy confirm monoclinic phase, Le‐Bail profile refinement of X‐ray diffraction (XRD) patterns demonstrate an exponential increase in lattice volume with incorporating various concentrations of Dy and Sm in HfO2 lattice. Exciting Dy and Sm codoped HfO2 with 393 nm photoluminescence spectra show emissions in blue, yellow, and near red regions emerging primarily due to energy transfer from Dy3+ to Sm3+ through multipolar interaction suggested by time resolved decay spectra. Combining excitation and emission spectra, an energy band diagram is proposed. Owing to excellent emissions, Dy and Sm codoped HfO2 are explored for LFP imaging with good selectivity and resolution over multivariate surfaces like float glass and aluminum foil. The third‐level details like enclosure and termination–bifurcation are extracted due to nanosized nature of particles.

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Section: Resultssupporting

confidence: 89%

Section: Time Resolved Decay Curvesmentioning

confidence: 99%

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties

Sandeep

Bahadur

Rath

2019

Part & Part Syst Charact

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“…The lower symmetry is also beneficial to the better UC emission performance. On the other hand, Cheng et al have revealed that the bandgap (E g ) of host will affect the UC luminescence and they point out that the increasing Eg values are expected to increase the UC luminescence because of the covalent property of host crystal lattice 52 . Figure 6F shows the bandgap values obtained according to the reflection spectra.…”

Section: Structure and Morphologiesmentioning

confidence: 99%

Manipulation of upconversion property and enhancement of sensitivity by tailoring the local structure

et al. 2020

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Temperature sensing based on fluorescence intensity ratio (FIR) technique is one of the application fields of upconversion (UC) luminescence materials. 1-4 Lanthanide ions with two thermally coupled energy levels (TCLs), such as Er 3+ , Ho 3+ , and Tm 3+ , are widely adopted as FIR signals. 5-7 Among them, Er 3+ ion is the preferred ion due to its suitable energy gap (700-800 cm −1) of TCLs (2 H 11/2 / 4 S 3/2) and higher UC quantum efficiency. 8 Yb 3+ ion is often introduced as a sensitizer to enhance the UC emission intensity, and the application of Yb 3+ and Er 3+ co-doped UC luminescence materials in temperature sensing field attracts much attention in recent years. 9-11 Sensitivity (S A) is an

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Emission color tunability of dysprosium-activated YNbO4–LuNbO4-mixed phosphors

Far,

Dramićanin,

Medić

et al. 2024

Appl. Phys. A

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White and yellow light emission from ZrO2:Dy3+ nanocrystals synthesized by a facile chemical technique

Cited by 8 publications

References 33 publications

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties

Manipulation of upconversion property and enhancement of sensitivity by tailoring the local structure

Emission color tunability of dysprosium-activated YNbO4–LuNbO4-mixed phosphors

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White and yellow light emission from ZrO2:Dy3+ nanocrystals synthesized by a facile chemical technique

Cited by 8 publications

References 33 publications

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO2 Nanophosphors: Structure and Luminescence Properties

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO2 Nanophosphors: Structure and Luminescence Properties

Manipulation of upconversion property and enhancement of sensitivity by tailoring the local structure

Emission color tunability of dysprosium-activated YNbO4–LuNbO4-mixed phosphors

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Product

Resources

About

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties