Enhancement of dysprosium oxide doped zinc alumino borosilicate glasses in thermal, optical and luminescence domain for solid state lighting application

Monisha, M.; Mazumder, Nirmal; Melanthota, Sindhoora Kaniyala; Padasale, Basavaraj; Almuqrin, Aljawhara H.; Sayyed, M.I.; Karunakara, N.; Kamath, Sudha D.

doi:10.1016/j.optmat.2022.112447

Cited by 8 publications

(4 citation statements)

References 44 publications

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“…While the magnetic dipole transition is independent of the Dy ions vicinity in the glass network, the corresponding electric dipole influences the Dy 3+ environment. STAMB1 glass sample was found to be more intense than the other glasses; thus, it was chosen as the optimum, which agreed with the reports of [ 52 ]. The observed dousing of the emission intensity at higher Dy 2 O 3 contents was linked to non-radiative decay arising from energy transfer through cross-relaxation processes when the Dy–Dy distances reached a critical value.…”

Section: Resultssupporting

confidence: 78%

“…Among all the observed bands, the near-infrared 6 H 15/2 → 6 F 11/2 transition band is broader and more intense than the other bands. This was linked to its hyper-sensitive nature satisfying the selection rule |ΔS| = 0, |ΔL|, |ΔJ| ≤ 2 [ 52 ]. Furthermore, no absorption transition was recorded in the visible region of 450–750 nm, linked to the impermissible spin selection rules [ 15 ].…”

Section: Resultsmentioning

confidence: 99%

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Intense up-conversion luminescence from Dy3+-doped multi-component telluroborate glass matrix: Role of CuO nanoparticles embedment

Abdullahi

Hashim

Sayyed

et al. 2023

Heliyon

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Section: Resultssupporting

confidence: 78%

Section: Resultsmentioning

confidence: 99%

Intense up-conversion luminescence from Dy3+-doped multi-component telluroborate glass matrix: Role of CuO nanoparticles embedment

Abdullahi

Hashim

Sayyed

et al. 2023

Heliyon

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“…The SATB3 glass sample was more intense than the other glasses. Thus, it was chosen as the optimum, which agreed with Monisha et al's reported work [69]. The observed dousing of the emission intensity at higher Dy 2 O 3 contents was linked to non-radiative decay arising from energy transfer through cross-relaxation processes.…”

Section: Emissions Spectral Analysis 341 Downconversion Luminescencesupporting

confidence: 69%

“…The nearinfrared 6 H 15/2 → 6 F 11/2 transition band is broader and more intense among the observed bands. This observation was linked to its hyper-sensitive nature satisfying the selection rule |ΔS| = 0, |ΔL|, |ΔJ| 2 [69]. Furthermore, the absence of noticeable absorption transitions in the visible region of 460-750 nm is a consequence of forbidden spin selection rules [26].…”

Section: Absorption Spectral Analysismentioning

confidence: 99%

Enhanced up- and down-conversion luminescence from Dy³⁺-Sm³⁺ co-doped B₂O₃-SrCO₃-TeO₂-Al₂O₃-MgO glass hosts: effects of CuO nanoparticles embedment

et al. 2023

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In the up-conversion nonlinear optical process, the absorption of lower energy photons causes the emission of photons at higher energy due to various mechanisms like sequential optical excitation, energy transfer, and nonlinear light-matter interaction processes. Improving the up- and down-conversion luminescence of different lanthanide-doped glasses via metallic nanoparticle embedment remains challenging. There has been no clear understanding of how copper oxide nanoparticles (CuONps) affect the spectroscopic properties of the Dysprosium ions (Dy3+)-doped and Dysprosium-Samarium ions (Dy3+-Sm3+)-co-doped glasses. Thus, new CuONps-infused strontium-telluro-aluminum-magnesium-borate glass samples were prepared using the standard melt-quenching technique with Dy3+ doping and Dy3+-Sm3+ co-doping. X-ray diffraction (XRD) analysis confirmed the samples' glassy nature. High-resolution transmission electron microscopy (HRTEM) provided the orientation and size distribution of the embedded nanoparticles in the glass hosts. The downconversion luminescence emission (at 350 nm excitation) corresponds to 4F9/2→6H15/2, 4F9/2→6H13/2, and 4F9/2→6H11/2 transitions in Dy3+. Judd-Ofelt calculations for the CuONps embedded sample showed significant radiative properties. A branching ratio of 79.6% was attained. The upconversion luminescence emission (at 896 nm excitation) bands corresponded to 4F9/2→6H15/2 and 4F9/2→6H13/2 transitions for the Dy3+-doped glasses. In addition, an intense peak due to the 4G5/2→6H7/2 transition in Sm3+ was observed in the co-doped glasses. It was determined that the increased up-conversion luminescence was related to localized surface plasmon resonance, energy transfer, and local field enhancements caused by CuONps inclusion. It was confirmed that excited state absorption and energy transfer mechanisms were involved in the up-conversion luminescence. Synthesized glasses may be helpful for upconversion displays, optical data storage, and solid-state lasers.

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Color tuneability behaviour and energy transfer analysis on Dy3+-Eu3+ co-doped glasses for NUV-WLEDs application

Monisha

Sayyed

Mazumder

et al. 2023

J Mater Sci: Mater Electron

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A series of Dy3+ and Eu3+ co-doped zinc aluminoborosilicate (ZABS) glasses were synthesized by a high-temperature melt-quenching method. Visible and NIR transitions of Dy3+-Eu3+ ions are observed through absorption spectra. A reverse trend in the optical band gap values and Urbach energy are seen with addition of Eu3+ ions. Photoluminescence studies recorded under different excitation wavelengths showed a variation in the emission intensities and prevailed the color tuneability behaviour of dopants. The energy transfer between Dy3+ and Eu3+ ions are studied through emission profiles, energy level diagram, and decay curves. The type of multipolar interaction between Dy3+ and Eu3+ are understood via Inokuti-Hirayama (IH) model and Dexter energy model. The CIE chromaticity coordinates, and correlated color temperature (CCT) values suggest that the prepared glasses can be used for light emitting diode application when excited at near-ultraviolet region.

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Enhancement of dysprosium oxide doped zinc alumino borosilicate glasses in thermal, optical and luminescence domain for solid state lighting application

Cited by 8 publications

References 44 publications

Intense up-conversion luminescence from Dy3+-doped multi-component telluroborate glass matrix: Role of CuO nanoparticles embedment

Intense up-conversion luminescence from Dy3+-doped multi-component telluroborate glass matrix: Role of CuO nanoparticles embedment

Enhanced up- and down-conversion luminescence from Dy³⁺-Sm³⁺ co-doped B₂O₃-SrCO₃-TeO₂-Al₂O₃-MgO glass hosts: effects of CuO nanoparticles embedment

Color tuneability behaviour and energy transfer analysis on Dy3+-Eu3+ co-doped glasses for NUV-WLEDs application

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Enhancement of dysprosium oxide doped zinc alumino borosilicate glasses in thermal, optical and luminescence domain for solid state lighting application

Cited by 8 publications

References 44 publications

Intense up-conversion luminescence from Dy3+-doped multi-component telluroborate glass matrix: Role of CuO nanoparticles embedment

Intense up-conversion luminescence from Dy3+-doped multi-component telluroborate glass matrix: Role of CuO nanoparticles embedment

Enhanced up- and down-conversion luminescence from Dy3+-Sm3+ co-doped B2O3-SrCO3-TeO2-Al2O3-MgO glass hosts: effects of CuO nanoparticles embedment

Color tuneability behaviour and energy transfer analysis on Dy3+-Eu3+ co-doped glasses for NUV-WLEDs application

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Enhanced up- and down-conversion luminescence from Dy³⁺-Sm³⁺ co-doped B₂O₃-SrCO₃-TeO₂-Al₂O₃-MgO glass hosts: effects of CuO nanoparticles embedment