Structural, thermal and optical properties of CaBO and CaLiBO glasses doped with Eu3+

Rojas, S. S.; Souza, José Ezequiel de; Yukimitu, K.; Hernandes, Antônio Carlos

doi:10.1016/j.jnoncrysol.2014.04.026

Cited by 29 publications

(8 citation statements)

References 21 publications

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“…3), the first suggests B-Ø-B bending vibrations in borate rings [18], Al-O À or Al-Ø-B stretching in aluminate network and silicate Q 1 unit [13,18]. The second band reflects B-Ø-B vibrations in [BØ 4 ] or [BO 3 ] 3À units [12,13].…”

Section: Discussionmentioning

confidence: 99%

White emitting phosphors based on glasses of the type 10AlF3–10TiO2–39PbO–30H3BO3–10SiO2–xEu2O3–(1−x)Tb2O3: An energy transfer study

Wileńska

Szczodrowski

Mahlik

et al. 2015

Journal of Luminescence

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Section: Discussionmentioning

confidence: 99%

White emitting phosphors based on glasses of the type 10AlF3–10TiO2–39PbO–30H3BO3–10SiO2–xEu2O3–(1−x)Tb2O3: An energy transfer study

Wileńska

Szczodrowski

Mahlik

et al. 2015

Journal of Luminescence

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“…The higher the thermal parameters, the higher the stability of glass against crystallization during heating and the ability to form glass. 47,48 Figure 3A-D shows the absorption spectra of the KZnBP (host), KZnBP:Dy 3+ , KZnBP:Eu 3+ , and KZnBP:Dy 3+ /Eu 3+ glasses. The Dy 3+ absorption spectrum (Figure 3B) showed transitions from the ground level 6 H 15/2 to various levels 6 P 5/2 , 4 M 19/2 (349 nm), 6 P 7/2 , 4 I 11/2 (364 nm), and 4 K 17/2 , 4 M 21/2 (387 nm).…”

Section: Characterization Techniquesmentioning

confidence: 99%

Excitation‐dependent energy transfer and color tunability in Dy³⁺/Eu³⁺ co‐doped multi‐component borophosphate glasses

et al. 2023

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Using the melt‐quench technique, potassium zinc borophosphate (KZnBP) glasses incorporated with Dy3+, Eu3+, and Dy3+/Eu3+ ions individually and combinedly were prepared, and their photoluminescence (PL)‐related features were investigated. The KZnBP glass containing an optimized content of Dy3+ (0.5 mol%) is co‐doped with Eu3+ in various contents, and the energy transfer (ET) process between them was studied at λexci = 349, 364, 387 (Dy3+), and 394 nm (Eu3+). The Dy3+/Eu3+ co‐doped system, when excited with Dy3+ excitations has resulted in a significant decrease in the intensity of Dy3+ peaks observed at 480 nm (4F9/2→6H15/2, blue) and 574 nm (4F9/2→6H13/2, yellow), with simultaneous enhancement of the intensity of Eu3+ peaks at 591 nm (5D0→7F1, orange) and 617 nm (5D0→7F2, red). This trend is due to the efficient energy transfer from Dy3+ to Eu3+, indicating that Eu3+ ions were sensitized by Dy3+ ions. Dexter's theory and the Inokuti–Hirayama (I–H) model revealed that the dipole–dipole interaction is accountable for the energy transfer from Dy3+ to Eu3+ through energy‐transfer channels [4F9/2(Dy3+)+7F1,2(Eu3+)→6H15/2(Dy3+)+5D2(Eu3+)] and [4F9/2(Dy3+)+7F0(Eu3+)→6H13/2(Dy3+)+5D0(Eu3+)]. The color coordinates of the Dy3+/Eu3+ co‐doped glasses under various excitations fall within the white light emission spectrum, indicating their potential application in warm white LEDs.

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“…It is found that it exists in two forms trivalent (Ti 3+ ) as well as tetravalent (Ti 4+ ) in the glass matrix. Which contributes as glass modifier in the form of TiO6 structural units and as a glass former as TiO4 [3][4][5]. Normally, TiO2 exist in Ti 4+ state and sometimes with TiO5 (comprising of trigonal bipyramids) structural units in the glass network.…”

Section: Introductionmentioning

confidence: 99%

The Electrical characterization of sodium cadmium borate glasses doped with TiO2

Raheja¹,

Singh²,

Uddin³

2021

Preprint

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A glass series sodium cadmium borate glasses doped with titanium has been formed using melt quench technique within the composition 20Na2O-(20-x)CdO-60B2O3-xTiO2 (0 ≤ x ≤ 5 mol%). The composition was prepared to study the effect of dopant (TiO2) on physical, optical and electrical properties of the glass series under study. The results of physical parameter i.e. density and molar volume show some structural changes at higher concentration of TiO2 doping. Some theoretical optical parameter parameters (n, Rm, αm and ) were calculated and displayed in Table 2 & 3. The dc conductivity of the glasses is found temperature dependent. The conductivity value ranges in between 2.45x10 -6 -3.47x10 -6 Scm -1 at 523 K temperature indicates the insulating behavior of these glasses.

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Structural, thermal and optical properties of CaBO and CaLiBO glasses doped with Eu3+

Cited by 29 publications

References 21 publications

White emitting phosphors based on glasses of the type 10AlF3–10TiO2–39PbO–30H3BO3–10SiO2–xEu2O3–(1−x)Tb2O3: An energy transfer study

White emitting phosphors based on glasses of the type 10AlF3–10TiO2–39PbO–30H3BO3–10SiO2–xEu2O3–(1−x)Tb2O3: An energy transfer study

Excitation‐dependent energy transfer and color tunability in Dy³⁺/Eu³⁺ co‐doped multi‐component borophosphate glasses

The Electrical characterization of sodium cadmium borate glasses doped with TiO2

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Structural, thermal and optical properties of CaBO and CaLiBO glasses doped with Eu3+

Cited by 29 publications

References 21 publications

White emitting phosphors based on glasses of the type 10AlF3–10TiO2–39PbO–30H3BO3–10SiO2–xEu2O3–(1−x)Tb2O3: An energy transfer study

White emitting phosphors based on glasses of the type 10AlF3–10TiO2–39PbO–30H3BO3–10SiO2–xEu2O3–(1−x)Tb2O3: An energy transfer study

Excitation‐dependent energy transfer and color tunability in Dy3+/Eu3+ co‐doped multi‐component borophosphate glasses

The Electrical characterization of sodium cadmium borate glasses doped with TiO2

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Excitation‐dependent energy transfer and color tunability in Dy³⁺/Eu³⁺ co‐doped multi‐component borophosphate glasses