The luminescence of Cs2NaSbCl6 AND Cs2NaSbBr6: a transition from a localized to a delocalized excited state

Oomen, E.W.J.L.; Smit, W.M.A.; Blasse, G.

doi:10.1016/0009-2614(87)80336-6

Cited by 26 publications

(41 citation statements)

References 27 publications

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“…It is shown that the four chemical parameters, coordination number, fractional covalence, bond volume polarizability, and presented charge, are factors influencing the positions of excitation bands of Sb 3+ ion in host lattices. In particular, the conclusion is to some extent consistent with the previous observations by Blasse et al . Covalence and coordination number are usually considered to be two main factors that influencing the energy levels of ns 2 ion in crystals.…”

Section: Theoretical Methodssupporting

confidence: 91%

“…From the previous work about the spectroscopy of Sb 3+ discussed above, it can be found that crystallographic structure, coordination number, and the charge compensation effect, can influence the luminescence of Sb 3+ ion in host lattices. However, there is still a lot of research needed in this area to understand the quantitative correlations between the host environment and the optical properties of Sb 3+ ion.…”

Section: Introductionmentioning

confidence: 99%

“…21,22 Improved luminescence or tunable white emission have been obtained though energy transfer from Sb 3+ to Tb 3+ , Eu 3+ or Mn 2+ in Y 2 Sn 2 O 7 , YBO 3 , or borosilicate glasses. 3,23,24 From the previous work about the spectroscopy of Sb 3+ discussed above, it can be found that crystallographic structure, 12,16 coordination number, 14,15,17,23 and the charge compensation effect, 1,18 can influence the luminescence of Sb 3+ ion in host lattices. However, there is still a lot of research needed in this area to understand the quantitative correlations between the host environment and the optical properties of Sb 3+ ion.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore the cubic elpasolites Cs 2 NaMCl 6 and Cs 2 NaMBr 6 (M = Sc, Y, and La) with perfectly cubic MCl 6 3− or MBr 6 3− octahedra were used to investigate the optical properties of the trivalent Sb 3+ in cubic symmetry . The luminescence of Cs 2 NaSbCl 6 and Cs 2 NaSbCl 6 were interpreted in terms of a band model …”

Section: Introductionmentioning

confidence: 99%

“…2,11,13,14 The luminescence of Cs 2 NaSbCl 6 and Cs 2 NaSbCl 6 were interpreted in terms of a band model. 15 Except for halides, phosphates, alkaline-earth metal halophosphates, and borates were also doped with Sb 3+ ion and the nature of the excitation and emission transitions was discussed. Orthophosphates LPO 4 (L = Sc, Lu, Y) have the tetragonal zircon structure, and only one crystallographic site (eight coordination, D 2d site symmetry) is available.…”

Section: Introductionmentioning

confidence: 99%

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

Wang

Guo

et al. 2015

J. Am. Ceram. Soc.

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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.

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Section: Theoretical Methodssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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

Wang

Guo

et al. 2015

J. Am. Ceram. Soc.

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Hybrid 0D Antimony Halides as Air‐Stable Luminophores for High‐Spatial‐Resolution Remote Thermography

et al. 2021

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Luminescent organic–inorganic low‐dimensional ns2 metal halides are of rising interest as thermographic phosphors. The intrinsic nature of the excitonic self‐trapping provides for reliable temperature sensing due to the existence of a temperature range, typically 50–100 K wide, in which the luminescence lifetimes (and quantum yields) are steeply temperature‐dependent. This sensitivity range can be adjusted from cryogenic temperatures to above room temperature by structural engineering, thus enabling diverse thermometric and thermographic applications ranging from protein crystallography to diagnostics in microelectronics. Owing to the stable oxidation state of Sb3+, Sb(III)‐based halides are far more attractive than all major non‐heavy‐metal alternatives (Sn‐, Ge‐, Bi‐based halides). In this work, the relationship between the luminescence characteristics and crystal structure and microstructure of TPP2SbBr5 (TPP = tetraphenylphosphonium) is established, and then its potential is showcased as environmentally stable and robust phosphor for remote thermography. The material is easily processable into thin films, which is highly beneficial for high‐spatial‐resolution remote thermography. In particular, a compelling combination of high spatial resolution (1 µm) and high thermometric precision (high specific sensitivities of 0.03–0.04 K−1) is demonstrated by fluorescence‐lifetime imaging of a heated resistive pattern on a flat substrate, covered with a solution‐spun film of TPP2SbBr5.

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Photoluminescence of Singlet/Triplet Self‐Trapped Excitons in Sb³⁺‐Based Metal Halides

Jing

Liu

et al. 2021

Advanced Optical Materials

203

177

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these alternatives with varied crystal structures improved the water/thermal stability and optimized the optical performance of metal halide materials group. [7] ns 2 metal ion-based metal halides have always been regarded as the mainstream materials owing to their excellent optical properties and the facile synthesis procedure. [8] Moreover, ns 2 metal ion-based halides with broad-band emission and large Stokes shift, which can avoid selfabsorption effectively, are desirable for phonic applications. And, the self-trapped excitons (STEs) herein are ascribed to the strong electronphonon coupling in the distorted excited structure. [9] To generate diverse STEs emission in the visible light region, different ns 2 metal ions like Ge 2+ , Sn 2+ , Te 4+ , Bi 3+ , and Sb 3+ are selected to adjust emission peaks due to their different coordination environment and special crystal/local structures. [10] Among ns 2 metal halides, Sb 3+ -based halides with blue, green, and red tunable luminescence have been explored extensively as low-toxic and highly stable candidates, moreover, their luminescence mechanisms are discussed by combined experimental and theoretical methods, as well as their unique singlet and triplet excitonic emission. [5d,e,11] In this review, we first look back the electronic energy levels of ground state and excited state for ns 2 ions and the luminescence of Sb 3+ in transition metal oxides. Next, we summarize the recent progresses of the crystal structures, optical properties, and luminescence mechanisms of some Sb 3+ -based halides and Sb 3+ -doped metal halides including all-inorganic and hybrid organic-inorganic perovskite derivatives. Then, we discuss the current achievements of these materials in the emerging applications. And finally, we offer the perspective and some suggestions on the possible development of luminescent Sb 3+ -based metal halides. Electronic Energy Levels of Sb 3+The luminescence and radiation process of ns 2 ions in solidstate compounds have been widely investigated. [10a,b,d,12] A free Emerging lead-free metal halides with low toxicity and unparalleled optoelectronic properties have attracted growing research interests, also demonstrating extensive application potentials. Among these, Sb 3+ -based allinorganic/organic-inorganic hybrid metal halides become a vital group due to the special energy level distribution along with diverse optical properties. However, there remains a gap in understanding the relationship between the crystal structure and the radiation process of involved Sb 3+ emission. Herein, the existing reports about Sb 3+ -based luminescent metal halides are revisited and their structure-luminescence-application relationship is explored, and it is further established that the triplet self-trapped excitons (STEs) emission of Sb 3+ varies in different crystallographic environments and endows tunable luminescent performance. This work aims to provide constructive strategies in the further exploitation of Sb 3+ -based metal halides, and also guides the structura...

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The luminescence of Cs2NaSbCl6 AND Cs2NaSbBr6: a transition from a localized to a delocalized excited state

Cited by 26 publications

References 27 publications

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

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

Hybrid 0D Antimony Halides as Air‐Stable Luminophores for High‐Spatial‐Resolution Remote Thermography

Photoluminescence of Singlet/Triplet Self‐Trapped Excitons in Sb³⁺‐Based Metal Halides

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The luminescence of Cs2NaSbCl6 AND Cs2NaSbBr6: a transition from a localized to a delocalized excited state

Cited by 26 publications

References 27 publications

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

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

Hybrid 0D Antimony Halides as Air‐Stable Luminophores for High‐Spatial‐Resolution Remote Thermography

Photoluminescence of Singlet/Triplet Self‐Trapped Excitons in Sb3+‐Based Metal Halides

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

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

Photoluminescence of Singlet/Triplet Self‐Trapped Excitons in Sb³⁺‐Based Metal Halides