Spectroscopic traits of holmium in magnesium zinc sulfophosphate glass host: Judd – Ofelt evaluation

Jupri, Siti Aishah; Ghoshal, Sib Krishna; Omar, Muhammad Firdaus; Yusof, N.N.

doi:10.1016/j.jallcom.2018.04.218

Cited by 53 publications

(16 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lanthanide ions generally have large Stokes’ shifts, narrow emission bands, long excited state lifetimes, and high color purity emissions in the Visible‐IR region, which form the basis for extensive applications in white LEDs, sensors, lasers, up‐conversion emission, optical data storage, communications, medicine, etc . The color of the luminescence is determined primarily by the lanthanide ion, but optical spectra are also closely related to its local symmetry with the emission quantum efficiency being strongly related to the phonon energy of the host matrix. Metal oxides are commonly used as host materials, and zirconia (ZrO 2 ) has various valuable physicochemical properties, such as hardness, high refractive index, high chemical stability, high dielectric constant (k ~ 20), and a wide band‐gap (5.16–7.8 eV) .…”

Section: Introductionmentioning

confidence: 99%

Preparation and optical properties of samaria‐doped yttria‐stabilized zirconia single crystals

Tan

Wang

et al. 2019

J Am Ceram Soc

View full text Add to dashboard Cite

Single crystals of yttria‐stabilized zirconia (YSZ) doped with various concentrations of Sm2O3 were synthesized by the optical floating zone method, and their structure and spectroscopic properties characterized using powder X‐ray diffraction (XRD), optical absorption, and luminescence measurements. XRD showed that the cubic phase of ZrO2 was stabilized by addition of Y2O3 and a series of absorption peaks characteristic of Sm3+ was detected by UV‐visible absorption spectroscopy. Three phenomenological J‐O oscillator strength parameters Ωt (t = 2, 4, 6) were calculated to evaluate the local structure and bonding in the vicinity of the Sm3+ for the 0.75 mol% Sm2O3: YSZ sample. These were in order of Ω2 < Ω4 < Ω6 with values of Ω2 = 5.46 × 10−20 cm2, Ω4 = 10.70 × 10−20 cm2, and Ω6 = 12.67 × 10−20 cm2, and indicate a relatively high symmetry and low covalent character for the Sm‐O bond at the Sm3+ sites in the YSZ matrix. Photoluminescence spectra recorded under an excitation of 404 nm showed four emission bands centered at 571 nm, 621 nm, 652 nm, and 716 nm corresponding to the transitions 4G5/2→6Hj (j = 5/2, 7/2, 9/2, 11/2). The transition probability, lifetime, and branching ratio obtained from the emission spectrum of the 0.75 mol% Sm2O3: YSZ crystal showed that YSZ is a potential host for Sm3+ to achieve a reddish‐orange laser output, and the Sm3+‐modified YSZ crystals have a possible use in reddish‐orange laser and lighting devices.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and optical properties of samaria‐doped yttria‐stabilized zirconia single crystals

Tan

Wang

et al. 2019

J Am Ceram Soc

View full text Add to dashboard Cite

show abstract

“…The ground condition ( 5 I 8 ) of Ho 3+ -ions with a 4f transition was detected in seven transitions in the UV-Vis-NIR area, as can be seen in the standard spectra (Figure 7) of the B05H sample. Peak transitions of 417,450, 486, 538, 642, 1152 and 1948 nm are assigned to ( 5 G, 3 G) 5 , 5 G 6 , 5 F 3 , 5 S 2 , 5 F 5 , 5 I 6 and 5 I 7, respectively [13,18,29,30]. Among all transitions, 5 G 6 is a hypersensitive transition that is specific to the surrounding atmosphere of the Ho 3+ -ions; it follows the selection rules |∆S| = 0, |∆L| ≤ 2 and |∆J| ≤ 2.…”

Section: Uv-vis-nir Analysis With Tauc's Plotsmentioning

confidence: 99%

Concentration Dependent Improved Spectroscopic Characteristics and Near White Light Emission in Boro Phosphate Glasses Doped with Holmium

Ansari

Alshahrie

et al. 2022

Applied Sciences

View full text Add to dashboard Cite

The physical, structural, thermal, and optical properties of heavy metal (Ho3+) oxide incorporated lithium-boro-phosphate glass prepared utilizing melt quenching process are presented in this paper as a function of dopant concentration. To support the findings of the FTIR and DSC studies, many theoretical, experimental, physical, and optical parameters were calculated. XRD and FTIR measurements revealed the prepared glasses’ amorphous nature and the presence of significant borate functional groups. The optical band gap, Urbach energy, and steepness characteristics were tested to validate the structural results. The emission spectrums were recorded in the prepared glasses for an excitation of 450 and 550 nm to find powerful emission color. The color co-ordinates (0.33, 0.41) were found to be quite comparable to white light color co-ordinates. The present glasses can, therefore, be ideal candidates for possible applications with light-emitting diodes.

show abstract

“…It was reported that the incorporation of the sulphate ions can offer an ideal environment for the large intake of LIs that is advantageous for the reduction of the LIs clustering and design of the miniaturized lasers [7]. Some studies also demonstrated that the chemical durability and structural stability of the boro-phosphate network can be improved via the incorporation of the zinc ions [8,9]. Holmium ions (Ho 3+ ) are the potential candidates for the wide range of applications such as the optical data storage, sensors, lasers, amplifiers, and radars [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…It has unique 4f energy levels (several excited states with high energies) that are desired for the exclusive luminescence transitions. Nevertheless, the non-radiative relaxation processes associated to various excited states contributes to the energy loss, thereby limiting its practical applications [9]. To surmount such shortcomings an appropriate selection of the host matrix is necessary where the local electric field inside the host network is responsible for the splitting of the 4f energy levels of Ho 3+ [13,14].…”

Section: Introductionmentioning

confidence: 99%

Customized physical and structural features of phosphate-based glass-ceramics: role of Ag nanoparticles and Ho³⁺ impurities

Alqarni

Hussin

Alamri

et al. 2020

Journal of Taibah University for Science

View full text Add to dashboard Cite

The effects of silver nanoparticles (Ag NPs) embedment on the physical and structural characteristics of the holmium ions (Ho 3+ ) activated phosphate-based glass-ceramics were assessed. Two series of such glass-ceramics were prepared using the melt-quenching and characterized. In the first series, the Ag NPs were nucleated from the incorporated AgCl via the redox process. In the second series, the pure Ag nanopowder was directly added. The overall properties of these glass-ceramics were strongly sensitive to the cooling procedure and NPs addition strategies, leading to different density and refractive index modifications in the two series. The recorded O1s XPS peaks were exploited to determine the bridging to non-bridging oxygen ratios in the studied glass-ceramics network that enabled to unfold the differences in the observed inferences. A compelling correlation among various attributes in the achieved glass-ceramics was established. Briefly, the overall traits of the proposed glass-ceramics were tailored by regulating the preparation conditions.

show abstract

Spectroscopic traits of holmium in magnesium zinc sulfophosphate glass host: Judd – Ofelt evaluation

Cited by 53 publications

References 70 publications

Preparation and optical properties of samaria‐doped yttria‐stabilized zirconia single crystals

Preparation and optical properties of samaria‐doped yttria‐stabilized zirconia single crystals

Concentration Dependent Improved Spectroscopic Characteristics and Near White Light Emission in Boro Phosphate Glasses Doped with Holmium

Customized physical and structural features of phosphate-based glass-ceramics: role of Ag nanoparticles and Ho³⁺ impurities

Contact Info

Product

Resources

About

Spectroscopic traits of holmium in magnesium zinc sulfophosphate glass host: Judd – Ofelt evaluation

Cited by 53 publications

References 70 publications

Preparation and optical properties of samaria‐doped yttria‐stabilized zirconia single crystals

Preparation and optical properties of samaria‐doped yttria‐stabilized zirconia single crystals

Concentration Dependent Improved Spectroscopic Characteristics and Near White Light Emission in Boro Phosphate Glasses Doped with Holmium

Customized physical and structural features of phosphate-based glass-ceramics: role of Ag nanoparticles and Ho3+ impurities

Contact Info

Product

Resources

About

Customized physical and structural features of phosphate-based glass-ceramics: role of Ag nanoparticles and Ho³⁺ impurities