Highly efficient up-conversion green emission in Ho/Yb co-doped yttria-stabilized zirconia single crystals

Tan, Xuezhi; Xu, Shoulei; Liu, Fenhong; Wang, Xiangyu; Goodman, B. A.; Xiong, Dingkang; Deng, Wen

doi:10.1016/j.jlumin.2019.01.041

Cited by 18 publications

(7 citation statements)

References 53 publications

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“…The decay lifetime of each emission is shorter than the rise times as expected from the nonlinear upconversion process . The obtained results are compared to crystalline hosts, and it is found that the lifetime values fall in the microsecond range, which is in good agreement with the literature. ,− …”

Section: Results and Discussionsupporting

confidence: 83%

Instantaneous Color Tuning of Upconversion Emission in a Novel Lanthanide-Doped Monolithic Glass via Excitation Modulation

et al. 2020

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In this work, instantaneous tuning of emission color in a monolithic tellurite glass doped with Ho3+/Tm3+/Yb3+ ions by modulating excitation frequency is experimentally demonstrated for the first time. The green-to-red ratio of the emission is changed successfully by varying the frequency from 100 to 7500 Hz due to different population rates of transitions due to red and green emissions. Remarkable quantum yield values are obtained under irradiation at a low power density. A multicolor plus-shaped image is constructed for the glass using a galvanometer as a proof of concept for the potentiality of lanthanide-doped luminescent glasses as screen materials for volumetric displays. Additionally, the Judd–Ofelt analysis shows good radiative transition probabilities, and the calculated gain coefficient values indicate that favorable laser emission is also obtainable upon proper excitation. The obtained results are encouraging, revealing the potentials of lanthanide-doped glasses in a broad-band spectrum of photonic applications where tunable emission is demanded from a fixed monolithic material.

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Section: Results and Discussionsupporting

confidence: 83%

Instantaneous Color Tuning of Upconversion Emission in a Novel Lanthanide-Doped Monolithic Glass via Excitation Modulation

et al. 2020

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“…/Yb 3? co-doped systems has been reported by many authors [16][17][18][19][20]. Pandey et al have reported that the co-doping of Yb 3?…”

Section: Introductionmentioning

confidence: 81%

“…co-doped YSZ crystal and found the UC fluorescence emission intensity compared to Ho 3? doped YSZ crystal by up to 80-fold when excited by a 980 nm laser [20].…”

Section: Introductionmentioning

confidence: 99%

Up-conversion luminescence and near-infrared quantum cutting of Ho3+/Yb3+ co-doped hexagonal NaGdF4 phosphors

et al. 2021

J Mater Sci: Mater Electron

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In this paper, Ho 3? /Yb 3? co-doped Sodium Gadolinium Fluoride (NaGdF 4 ) phosphors were synthesized by a facile and efficient hydrothermal method. The samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy spectrum (EDS), and photoluminescence (PL). The results of XRD and SEM indicated that the prepared NaGdF 4 samples have the hexagonal structure and good orientation in the case of changing the concentration of Yb 3? . The results of pump power dependence of up-conversion intensity indicated that the energy transfer mechanism from Yb 3? to Ho 3? is a two-photon process. The energy transfer between Ho 3? and Yb 3? under 448 nm excitation was determined by PL spectra and fluorescence lifetimes. All the results proved that the doping of Yb 3? ions can effectively improve the upconversion luminescence of NaGdF 4 phosphors and achieve quantum cutting efficiency of up to 179.8%. Overall, NaGdF 4 :Ho 3? /Yb 3? have potential application in the field of optoelectronic materials.

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“…37 The three emission peaks corresponding to the transitions 4 In most previous studies of rare earth doped YSZ, variation of the number of oxygen vacancies with rare earth doping in YSZ samples where the Y : Zr ratio was kept constant will have induced additional structural distortions from an increased number of oxygen vacancies at high rare earth levels. 27,38 This problem of variation in the number of oxygen vacancies with Nd 3+ content was excluded from the present work by holding the Zr content constant (see Table 1), and the asymmetry at the Nd 3+ site is probably related to local distortions in the (ZrO 2 ) 92 (Y 2 O 3 ) 8−x (Nd 2 O 3 ) x crystal structure caused by the differences in size of the Nd 3+ and Y 3+ ions. It is assumed that the Nd 3+ replaces some of the Y 3+ in the crystal structure because of charge and size similarities, and evidence from section 3.2 shows that the positions of the absorption peaks are independent of Nd 3+ concentration, and thus Nd 3+ substitution does not have a significant effect on the crystal structure.…”

Section: Up-conversion Photoluminescence and Mechanismmentioning

confidence: 99%

Up-conversion luminescence and Judd–Ofelt analysis of Nd₂O₃-doped yttria stabilized zirconia single crystals

Zhang

et al. 2022

CrystEngComm

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Highly efficient up-conversion green emission in Ho/Yb co-doped yttria-stabilized zirconia single crystals

Cited by 18 publications

References 53 publications

Instantaneous Color Tuning of Upconversion Emission in a Novel Lanthanide-Doped Monolithic Glass via Excitation Modulation

Instantaneous Color Tuning of Upconversion Emission in a Novel Lanthanide-Doped Monolithic Glass via Excitation Modulation

Up-conversion luminescence and near-infrared quantum cutting of Ho3+/Yb3+ co-doped hexagonal NaGdF4 phosphors

Up-conversion luminescence and Judd–Ofelt analysis of Nd₂O₃-doped yttria stabilized zirconia single crystals

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Highly efficient up-conversion green emission in Ho/Yb co-doped yttria-stabilized zirconia single crystals

Cited by 18 publications

References 53 publications

Instantaneous Color Tuning of Upconversion Emission in a Novel Lanthanide-Doped Monolithic Glass via Excitation Modulation

Instantaneous Color Tuning of Upconversion Emission in a Novel Lanthanide-Doped Monolithic Glass via Excitation Modulation

Up-conversion luminescence and near-infrared quantum cutting of Ho3+/Yb3+ co-doped hexagonal NaGdF4 phosphors

Up-conversion luminescence and Judd–Ofelt analysis of Nd2O3-doped yttria stabilized zirconia single crystals

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Up-conversion luminescence and Judd–Ofelt analysis of Nd₂O₃-doped yttria stabilized zirconia single crystals