Design and Synthesis of CdWO₄:Sb³⁺ Phosphor Based on sp Energy Level Regularities of Sb³⁺ Ion

Abstract

Sb3+‐activated CdWO4 phosphors were designed according to sp energy levels regularities of Sb3+ ion in some inorganic compounds. The sp energy levels regularities of Sb3+ in dozens of compounds were established with the aid of the dielectric theory of the chemical bond for complex crystals: EA = 6.2187−1.7584he, EB = 7.019−1.957he, EC = 7.259−1.964he. Environmental factor he of Cd site was calculated to be 1.6583 with the refined crystal structure and refractive index of CdWO4:Sb3+. Sb3+‐doped CdWO4 was synthesized through a precipitation method and its structure was refined with the General Structure Analysis System. The transition energy of A band of Sb3+ in CdWO4 can be predicted to be 3.312 eV (374 nm), according to the relationship equation between EA and environmental factor he. By monitoring the 521 nm emission band, the excitation spectrum gives a weak excitation band peaking at 355 nm, which was assigned to the 1S0–3P1 transition of Sb3+ according to our prediction. Thus, Sb3+‐doped CdWO4 phosphor was designed and synthesized successfully based on sp energy levels regularities of Sb3+ ion. This work is a great help to understand the spectroscopy of Sb3+ ion and will be useful for the design and development of Sb3+‐doped phosphors for applications.

Rb3InCl6: A Monoclinic Double Perovskite Derivative with Bright Sb3+-Activated Photoluminescence

“…The spacing and positions of these transitions is consistent with that expected from literature and nearly identical to the absorption features that arise when Sb 3+ ions are doped into Cs 2 NaInCl 6 (Figure S4). 16,39,41 Rb 3 InCl 6 samples doped with Sb 3+ exhibit bright luminescence, most accurately described as "aquamarine" to the naked eye. To study this quantitatively, photoluminescent measurements were taken (see Figure 4).…”

“…The spacing and positions of these transitions is consistent with that expected from literature and nearly identical to the absorption features that arise when Sb 3+ ions are doped into Cs 2 NaInCl 6 (Figure S4). ,, …”

Modulation of Magnetic and Luminescence Properties via Control Cu-Doped in CdWO4 Nanorods for Photocatalytic Applications

“…Recently, metal ion doping has emerged as an effective way to tailor the properties of CdWO 4 nanostructures over a wide range . Eu 3+ , Tb 3+ , and Sm 3+ ion-doped CdWO 4 nanorods exhibited multi-color emissions by single-wavelength light excitation for luminescent applications. ,− On the contrary, doping Ca 2+ , Bi 3+ , Sb 3+ , Mo 2+ , and Cu 2+ ions at the Cd site leads to the generation of a single broad emission centered around 480 nm with a much reduced bandgap energy useful for photocatalytic applications. ,− …”

Excitability of high-energy ultraviolet radiation for Dy3+ in antimony phosphate glasses

“…The host material of glass is a non-negligible factor for the active RE 3+ to obtain efficient florescence [8][9][10][11][12][13][14][15][16][17][18][19]. Among all oxide glass laser materials, phosphate glasses have been a subject of considerable interest due to their unique properties such as high transparency, low production cost, high RE 3+ ion solubility and large emission cross section [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35].…”