Ultraviolet and violet upconversion luminescence in Ho3+-doped Y2O3 ceramic induced by 532-nm CW laser

Qin, Feng; Zheng, Yangdong; Yu, Ying; Cheng, Ziming; Tayebi, Pouran Sadat; Cao, Wenwu; Zhang, Zhiguo

doi:10.1016/j.jallcom.2010.09.188

Cited by 48 publications

(15 citation statements)

References 14 publications

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“…These decay times agreed with those previously reported. (32,(36)(37)(38) Figure 5 shows X-ray-induced scintillation spectra measured in the (a) UV-VIS and (b) NIR ranges. All the samples showed emission lines due to the 4f-4f transitions of RE ions.…”

Section: Resultsmentioning

confidence: 99%

Optical and Scintillation Properties of YAlO3 Doped with Rare-Earths Emitting Near-infrared Photons

Akatsuka¹,

Nakauchi²,

Kato³

et al. 2020

Sensors and Materials

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Scintillators emitting near-infrared (NIR) photons have unique characteristics and have been attracting attention recently. For example, scintillators emitting NIR photons are expected to be effective tools for radiation dose monitoring in high-dose environments. In this study, YAlO 3 samples doped with various rare-earth ions (Er 3+ , Ho 3+ , Pr 3+ , and Tm 3+ ) were synthesized by the floating zone method and their scintillation properties from the UV to NIR range were evaluated. Regarding their scintillation detection property, the Er 3+ -doped sample indicated an approximately linear proportional relationship from 1 mGy to 10 Gy.

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Section: Resultsmentioning

confidence: 99%

Optical and Scintillation Properties of YAlO3 Doped with Rare-Earths Emitting Near-infrared Photons

Akatsuka¹,

Nakauchi²,

Kato³

et al. 2020

Sensors and Materials

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“…6). The excitation bands are observed at around ~363nm, ~394 nm, ~420 nm, ~448 nm and ~469 nm corresponding to the 3 H 5 ← 5 I 8 , 5 G 4 ← 5 I 8 , 5 G 5 ← 5 I 8 , 5 G 6 ← 5 I 8 and 3 K 8 ← 5 I 8 transitions of Ho 3+ ion respectively 24,38 .…”

Section: Excitation Spectrum and White White Light Emissionmentioning

confidence: 99%

White light emission and effect of annealing on the Ho 3+ –Yb 3+ codoped BaCa 2 Al 8 O 15 phosphor

Kumari

Kumar

2015

Materials Research Bulletin

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“…Due to the ample energy levels of rare earth ions, often with ladder‐like arrangement, and efficient interionic energy transfer, upconversion luminescence can be generated in singly‐doped UCNPs by many single excitation wavelengths, spanning from NIR to visible range ‐ for instance, 532 nm, 808 nm and 1490 nm for Er 3 + ions, 532 nm for Ho 3 + ions, 800 nm and 1064 nm for Tm 3 + ions, and 473 nm and 609 nm for Pr 3 + ions . However, these upconversion systems generally have low efficiency due to the relatively small absorption cross‐sections of the rare earth ions at these wavelengths.…”

Section: Excitation Manipulation Of Upconversion Nanoparticlesmentioning

confidence: 99%

Photon Upconversion Kinetic Nanosystems and Their Optical Response

Liu

Huang

Valiev

et al. 2017

Laser & Photonics Reviews

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Lanthanide-doped photon upconversion nanoparticles (UCNPs) are capable of converting low-intensity near-infrared light to UV and visible emission through the synergistic effects of light excitation and mutual interactions between doped ions. UCNPs have attracted strong interest as unique spectrum converters and found a multitude of applications in areas like biomedical imaging, energy harvesting and information technology. UCNPs are distinct from many other types of luminescent materials in terms of the involvement of a host lattice and multiple optical centers, i.e., trivalent lanthanide ions with manyfolds of accessible long-lived energy states, in individual nanoparticles. The mutual interactions between these optical centers, i.e., sequential energy transfers, make them operate as an integrated unit and co-determine the luminescence kinetics and other optical properties of the individual nanoparticle. Thus, each nanoparticle consititutes a kinetic optical system. In this work, we explore UCNPs from the outset of being such kinetic optical systems and review their physical formation, the underlying photophysics, macroscopic statistical description, and their response to various optical stimuli in the spectral, polarization, intensity, temporal and frequency domains, and demonstrate ways that their optical output can be optimized by manipulating the excitation schemes. Our review highlights upconversion nanotechnology as an interdisciplinary field across chemistry, physics and biomedical engineering, with great future possibilities, flexibility and ramifications. We outline some of the potential directions of upconversion nanoparticle research.

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Ultraviolet and violet upconversion luminescence in Ho3+-doped Y2O3 ceramic induced by 532-nm CW laser

Cited by 48 publications

References 14 publications

Optical and Scintillation Properties of YAlO3 Doped with Rare-Earths Emitting Near-infrared Photons

Optical and Scintillation Properties of YAlO3 Doped with Rare-Earths Emitting Near-infrared Photons

White light emission and effect of annealing on the Ho 3+ –Yb 3+ codoped BaCa 2 Al 8 O 15 phosphor

Photon Upconversion Kinetic Nanosystems and Their Optical Response

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