Enhanced luminescence of manganese in singly doped white light zinc phosphate glass

Mao, Wei; Cai, Muzhi; Xie, Wei; Li, Panpan; Xu, Shiqing

doi:10.1111/jace.16895

Cited by 14 publications

(3 citation statements)

References 31 publications

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“…The lower inset of Figure is an enlargement for the 2Mn and 05-2NdMn glasses in the 375–450 nm range for better appreciation of the 410 nm absorption assigned to 6 A 1 (S) → 4 E(G), 4 A 1 (G) transitions in Mn 2+ (d 5 ) ions in octahedral coordination. ,,, The visible absorption of the 2Mn glass was otherwise resembling that of the undoped BP glass showing merely baseline absorption. This is consistent with the colorless appearance of the 2Mn glass and the lack of significant oxidation, which would otherwise produce a purple hue due to the absorption around 500 nm stemming from 5 E g → 5 T 2g transition in Mn 3+ (d 4 ) ions in octahedral coordination. ,− In addition, the 05-2NdMn glasses exhibit increasing intensities for the different Nd 3+ transitions, ,, spanning from the visible to the NIR. Further, the spectrum of the 2NdMn glass shows comparable intensity to the 2Nd reference concurring with a lack of interference from Mn 3+ .…”

Section: Resultssupporting

confidence: 68%

“…The visible emission spectrum of the 2Mn glass in Figure 6a clearly shows the broad emission band with a maximum of around 620 nm, which is characteristic of the 4 T 1 (G) → 6 A 1 (S) transition in Mn 2+ ions. 34,40,41 The emission band becomes successively suppressed for the 05-2NdMn glasses even though the concentration of manganese in all of these was constant. A similar outcome was reported by Zhang et al 24 for Mn 2+ emission in the Nd-doped 50P 2 O 5 −(50 − x)SrO−xMnO glasses, thus indicating the Mn 2+ → Nd 3+ energy transfer.…”

Section: Absorption Spectroscopymentioning

confidence: 99%

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Physical, Thermal, and Optical Properties of Mn²⁺ and Nd³⁺ Containing Barium Phosphate Glasses

Jiménez

2024

ACS Phys. Chem Au

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This work reports on various properties and analysis of optical interactions in phosphate glasses containing redemitting Mn 2+ and near-infrared (NIR)-emitting Nd 3+ ions, which are of interest for energy applications and solar spectral converters. The glasses were made by melting with 50P 2 O 5 −(48 − x)BaO−2MnO−xNd 2 O 3 (x = 0, 0.5, 1.0, and 2.0 mol %) nominal compositions and characterized by X-ray diffraction, density and related physical properties, differential scanning calorimetry, dilatometry, UV−vis−NIR optical absorption, and photoluminescence spectroscopy with decay kinetics analysis. The glasses were X-ray amorphous, wherein the physical and thermal properties of the Mn 2+ /Nd 3+ -codoped glasses were largely impacted by Nd 2 O 3 contents. The optical absorption spectra supported the occurrence of Mn 2+ ions and the lack of Mn 3+ in the codoped glasses, while the absorption due to Nd 3+ ions increased steadily with Nd 2 O 3 contents. Analyzing the glass absorption edges via Tauc and Urbach plots was further pursued for a comparison. The photoluminescence evaluation showed a consistent suppression of the emission from Mn 2+ ions with increasing Nd 3+ concentration, while the decay kinetics revealed shorter lifetimes in connection with increased Mn 2+ → Nd 3+ transfer efficiencies. Excitation of Mn 2+ at 410 nm, however, led to the Nd 3+ NIR emission being most intense for 1.0 mol % Nd 2 O 3 , despite the 4 F 3/2 emission decay analysis showing lifetime shortening throughout. Considering the compromise between red and NIR emissions, the Mn-containing glass doped with 0.5 mol % Nd 2 O 3 is put in perspective with the concept of solar spectral conversion.

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Section: Resultssupporting

confidence: 68%

Section: Absorption Spectroscopymentioning

confidence: 99%

Physical, Thermal, and Optical Properties of Mn²⁺ and Nd³⁺ Containing Barium Phosphate Glasses

Jiménez

2024

ACS Phys. Chem Au

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“…Mn 2+ ions finally undergo multiphonon relaxation to emitting level 4 T 1 (G) followed by radiative transition to the ground state, emitting at 620 and 660 nm. Moreover, the 4 T 1 (G) level includes not only the isolate Mn 2+ ions, but also the contribution of exchange‐coupled Mn 2+ pairs 50 …”

Section: Resultsmentioning

confidence: 99%

White‐light emission and red scintillation from Mn²⁺ ions single‐doped aluminum‐silicate glasses

Hua

Tang

Wei

et al. 2023

Int J of Appl Glass Sci

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A series of Mn2+ single‐doped 0.2Gd2O3‐0.2Al2O3‐0.6SiO2 (GAS: xMn2+) glasses with Si3N4 as reducing agent were prepared. The presence of [SiO4‐x] defects and Mn2+ ions was determined from the absorption and excitation spectra of the glasses. With the increase of Mn2+ concentration, the intensity of blue emission decreases, while the intensity of red emission increases. The color coordinate of GAS: 6Mn2+ glass is (0.264, 0.226). The lifetime of the glasses was tested. Under the monitoring of 440 nm, the fast components (τf) are between 17 and 85 μs, and the slow components (τs) are between 200–650 μs. The former belongs to [SiO4‐x] defects, and the latter is [4E(G), 4A1(G)]→6A1(S) transition of Mn2+ ions. Under the monitoring at 630 nm, the τf are between 110 and 300 μs, and the τs are between 680 and 1220 μs, which are due to 4T1(G)→6A1(S) transition of Mn2+ ions and Mn2+ pairs, respectively. The energy transfer mechanism of [SiO4‐x] defect→Mn2+ ions are explained. The efficient [SiO4‐x] defect →Mn2+ ions energy transfer process was demonstrated by time‐resolved photoluminescence, and the energy transfer efficiency is over 85%. The maximum photoluminescence quantum yield (PL QY) of the glasses can reach 15.87%. The thermal activation energy of the glasses was calculated. In addition, X‐ray excited red luminescence spectra and the mechanism of the glasses were investigated.

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Exploring the spectroscopic and I‑V‑T characteristics advancements of cadmium zinc tungsten phosphate diode

Mansour,

Nahrawy,

Hammad

2024

Appl. Phys. A

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This research accomplished the growth of cadmium zinc tungsten phosphate (CZWP) thin films on both glass and p-Si substrates, employing the sol–gel spin coating method. The sol–gel technique offers a versatile and controlled approach for fabricating nanomaterials with tailored properties. The structural and morphological analyses, conducted through XRD and FE-SEM, provided comprehensive insights into the nature of the films. The optical properties, absorbance behavior, energy gap, refractive indices, dielectric, conductivity, and electronegativity, underwent meticulous examination through UV–Vis spectroscopy. The X-ray diffraction analysis of the zinc cadmium tungsten phosphate diode reveals diffraction lines indicative of a nanostructure featuring a monoclinic-phase Zn2P2O7 and Cd3P6O28. Furthermore, SEM analysis confirms a nanoporous morphology with a nanograpes-like structure in the successful crystalline structure of the cadmium zinc tungsten phosphate nanostructure. The optical absorption studies, covering a wavelength range from 190 to 1500 nm, unveiled both direct and indirect energy band gaps, measuring 4.14 and 3.77 eV, respectively. A rigorous analysis of the I-V-T characteristics for the CZNP/p-Si junction in dark mode led to the identification of key parameters, including the transport ideality factor, barrier height, and series resistance.

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Enhanced luminescence of manganese in singly doped white light zinc phosphate glass

Cited by 14 publications

References 31 publications

Physical, Thermal, and Optical Properties of Mn²⁺ and Nd³⁺ Containing Barium Phosphate Glasses

Physical, Thermal, and Optical Properties of Mn²⁺ and Nd³⁺ Containing Barium Phosphate Glasses

White‐light emission and red scintillation from Mn²⁺ ions single‐doped aluminum‐silicate glasses

Exploring the spectroscopic and I‑V‑T characteristics advancements of cadmium zinc tungsten phosphate diode

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Enhanced luminescence of manganese in singly doped white light zinc phosphate glass

Cited by 14 publications

References 31 publications

Physical, Thermal, and Optical Properties of Mn2+ and Nd3+ Containing Barium Phosphate Glasses

Physical, Thermal, and Optical Properties of Mn2+ and Nd3+ Containing Barium Phosphate Glasses

White‐light emission and red scintillation from Mn2+ ions single‐doped aluminum‐silicate glasses

Exploring the spectroscopic and I‑V‑T characteristics advancements of cadmium zinc tungsten phosphate diode

Contact Info

Product

Resources

About

Physical, Thermal, and Optical Properties of Mn²⁺ and Nd³⁺ Containing Barium Phosphate Glasses

Physical, Thermal, and Optical Properties of Mn²⁺ and Nd³⁺ Containing Barium Phosphate Glasses

White‐light emission and red scintillation from Mn²⁺ ions single‐doped aluminum‐silicate glasses