The spectral properties and the NIR photoluminescence of univalent bismuth Bi+ in RbAlCl4, CsAlCl4, RbMgCl3, CsMgCl3, KCdCl3 and RbCdCl3 crystal phases

Vtyurina, D. N.; Romanov, A. N.; Veber, Alexander; Fattakhova, Z. T.; Antonov, Andrey A.; Цветков, В. Б.; Корчак, В. Н.

doi:10.1134/s1990793116030106

Cited by 16 publications

(10 citation statements)

References 24 publications

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“…Exact energies of the levels depend on the splitting of the triplet state under local environment of Bi + and can vary significantly from host to host. These changes can be rationalized considering simultaneous action of spin–orbit interaction and the crystal field of different symmetry on the ion. , To date the structural role and coordination environment of Bi + in solids have not been studied carefully. Recently, a quite complicated influence of the Bi + ion on the crystalline host structure was demonstrated: Bi + selectively occupied specific sites in the crystalline framework, causing a disordered displacement of the initial site .…”

Section: Discussionmentioning

confidence: 99%

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Optical Properties and Bismuth Redox in Bi-Doped High-Silica Al–Si Glasses

et al. 2018

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Due to their unique optical properties, Bi-doped glasses have a great potential for the development of new tunable laser sources. Particular attention is given to high-silicate Bi-doped glasses as active media for fiber lasers and optical amplifiers, capable to operate at the second and the third near-infrared (NIR) transparency windows. Although significant practical advances have been achieved in this area, the origin of the NIR luminescence remains unclear. In the present paper, a set of glasses 95.5SiO 2 −4.5Al 2 O 3 −xBi 2 O 3 (x = 0; 0.005; 0.01; 0.05; 0.1; 0.2) were synthesized using a conventional meltquenching technique and investigated using a multiscale approach. Variation of the NIR emission was correlated with the change of other optical properties, structure and bismuth redox, supported by fluorescence/absorption, Raman, and XANES experimental studies, respectively. It was found that redox of bismuth shifted toward the formation of more reduced Bi species with the decrease of the dopant level. Based on the complementary experimental results, the two NIR optical centers observed were attributed to the presence of a Bi + ion, which dominates at the lowest dopant level, and presumably a Bi + −Bi + dimer, forming at higher Bi concentrations. The dimer center was found to participate in a Forster-type energy transfer, interpreted as energy migration. This knowledge complements previous findings and will help in rational engineering of Bi-doped optical materials.

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Section: Discussionmentioning

confidence: 99%

“…Special attention has been paid to the Bi + optical center. Its optical properties have been investigated in diverse crystalline hosts: halide, ,,, oxide, zeolites, , as well as polyoxometalates . Optical properties of crystalline materials are in many respects similar to the Bi-doped glasses.…”

Section: Introductionmentioning

confidence: 99%

Optical Properties and Bismuth Redox in Bi-Doped High-Silica Al–Si Glasses

et al. 2018

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“…The initial components were placed into a quartz glass ampoule with the inner diameter of 20 mm together with a small amount of metallic bismuth taken in proportion of BiCl 3 /Bi = 1, which has been determined experimentally to form the univalent bismuth [19]. All the procedures of weighing of the reagents and placing them into the ampoule were carried out under dry inert gas atmosphere.…”

Section: Methodsmentioning

confidence: 99%

“…6b). Due to the fact that the Bi + -doped RbAlCl 4 , CsAlCl 4 , RbMgCl 3 , CsMgCl 3 , KCdCl 3 and RbCdCl 3 crystals were found to possess the long-lived luminescence from 280 μs to 525 μs [19], the Bi + ion can hardly be the source of photoluminescence from the TlCdI 3 :Bi sample. The characteristic lifetimes are 150 μs (1) and 170 μs (2) for the TlCdCl 3 :Bi (Fig.…”

Section: Optical Propertiesmentioning

confidence: 99%

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Influence of monovalent Bi+ doping on real composition, point defects, and photoluminescence in TlCdCl3 and TlCdI3 single crystals

et al. 2017

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Near‐Infrared Light Emitting Metal Halides: Materials, Mechanisms, and Applications

Liu,

Di Stasio,

et al. 2024

Advanced Materials

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Near‐Infrared (NIR) light emitting metal halides are emerging as a new generation of optical materials owing to their appealing features, which include low‐cost synthesis, solution processability and adjustable optical properties. NIR emitting perovskite‐based light‐emitting diodes (LEDs) have reached an external quantum efficiency (EQE) over 20% and a device stability of over 10,000 h. Such results have sparked an interest in exploring new NIR metal halide emitters. In this review, we summarize several different types of NIR‐emitting metal halides, including lead/tin bromide/iodide perovskites, lanthanide ions doped/based metal halides, double perovskites, low dimensional hybrid and Bi3+/Sb3+/Cr3+ doped metal halides, and assess their recent advancements. The characteristics and mechanisms of narrow‐band or broadband NIR luminescence in all these materials are discussed in detail. We also highlight the various applications of NIR‐emitting metal halides and provide an outlook for the field.This article is protected by copyright. All rights reserved

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The spectral properties and the NIR photoluminescence of univalent bismuth Bi+ in RbAlCl4, CsAlCl4, RbMgCl3, CsMgCl3, KCdCl3 and RbCdCl3 crystal phases

Cited by 16 publications

References 24 publications

Optical Properties and Bismuth Redox in Bi-Doped High-Silica Al–Si Glasses

Optical Properties and Bismuth Redox in Bi-Doped High-Silica Al–Si Glasses

Influence of monovalent Bi+ doping on real composition, point defects, and photoluminescence in TlCdCl3 and TlCdI3 single crystals

Near‐Infrared Light Emitting Metal Halides: Materials, Mechanisms, and Applications

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