Heating-up synthesis of cesium bismuth bromide perovskite nanocrystals with tailored composition, morphology, and optical properties

Lee, Donguk; Kim, Min Hye; Woo, Ho Young; Chae, Ji‐Yeon; Lee, Dawon; Jeon, Sanghyun; Oh, Soong Ju; Paik, Taejong

doi:10.1039/c9ra10106c

Cited by 28 publications

(22 citation statements)

References 65 publications

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“…Prior to discharging, two peaks attributed to the BiBr 3 appeared, at 159.9 and 164.8 eV and there was no obvious metallic Bi peak. The peaks attributed to the Bi metal is close to the reported values of the Cs 3 Bi 2 Br 9 (Bi 3+ ) [25] . Following discharging, metallic Bi peaks appeared at 157.0 and 162.2 eV while the intensities of the BiBr 3 peaks were decreased.…”

Section: Properties Cubr2 Febr3 Bibr3 Agbrsupporting

confidence: 84%

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An All‐Solid‐State Bromide‐Ion Battery

et al. 2021

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Bromide‐ion batteries can provide higher energy densities compared to conventional lithium‐ion batteries, but the high water solubility of bromide salts may require all‐solid‐state cells. Fortunately, the low Young's modulus of bromide salts is an advantage in terms of fabricating high‐performance all‐solid‐state cells. The present study provides the first‐ever demonstration of an all‐solid‐state bromide‐ion battery. In this work, a novel, single‐phase, K‐doped PbBr2 electrolyte was prepared by mechanical milling, and highly dense pellets were readily obtained from this material by uniaxial cold pressing, because of its low modulus. An initial discharge capacity equal to 87 % of the theoretical capacity was exhibited by an experimental battery when using a BiBr3 positive electrode. This concept of a bromide shuttle battery is expected to promote the research of next‐generation batteries incorporating new active materials and based on conversion‐type reactions.

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Section: Properties Cubr2 Febr3 Bibr3 Agbrsupporting

confidence: 84%

“…The peaks attributed to the Bi metal is close to the reported values of the Cs 3 Bi 2 Br 9 (Bi 3 + ). [25] Following discharging, metallic Bi peaks appeared at 157.0 and 162.2 eV while the intensities of the BiBr 3 peaks were decreased. The peaks attributed to the Bi metal is close to the reported values.…”

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confidence: 98%

An All‐Solid‐State Bromide‐Ion Battery

et al. 2021

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“…Despite the success of Cs 3 Bi 2 X 9 NCs synthesis, the optical performances, especially PLQY, seem to be inferior than that of Pb-based counterparts [138]. Some recent studies in this field have shown that Cs 3 Bi 2 X 9 NCs with high PLQY can be produced through careful manipulation of surface ligands and solvents [139]. For example, Yang and coworkers synthesized Cs 3 Bi 2 X 9 NCs through a ligandfree facile reaction at RT and the resulting Cs 3 Bi 2 Br 9 NCs exhibited a low PLQY (~0.2%) because of the ultrafast trapping process [131].…”

Section: Bi(iii)-mentioning

confidence: 99%

Recent Advances and Opportunities of Lead-Free Perovskite Nanocrystal for Optoelectronic Application

Zhang

Shi

et al. 2021

Energy Mater Adv

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Metal halide perovskite nanocrystals (NCs), as a new class of light-emitting and light-harvesting materials, have recently attracted intensive attention for an impressive variety of optoelectronic applications. However, the lead toxicity and poor stability of such materials severely restrict their practical applications and future commercialization. Lead-free perovskite NCs and their derivatives, designed by the reasonable chemical substitution of Pb with other nontoxic elements, are recently booming as an attractive alternative to lead-based counterparts. In this review, we firstly present a comprehensive overview of currently explored lead-free perovskite NCs with an emphasis on their design routes, morphologies, optoelectronic properties, and environmental stability issues. Then, we discuss the preliminary achievements of lead-free perovskite NCs in versatile optoelectronic applications, such as light-emitting devices, solar cells, photodetectors, and photocatalysis. We finish this review with a critical outlook into the currently existing challenges and possible development opportunities of this rapidly evolving field.

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“…Especially materials based on bismuth halides are investigated, because they are expected to be non‐toxic, [2] however, some of them proved to be better suited as luminescent materials [3] . Among the many compounds discussed are alkali metal salts of type M 3 Bi X 6 ( M =Rb, Cs; X =Br, I), which are sometimes referred to as “zero‐dimensional perovskites”, because of their isolated [Bi X 6 ] octahedra, or as “double halide perovskites“ [2–5] …”

Section: Introductionmentioning

confidence: 99%

“…[3] Among the many compounds discussed are alkali metal salts of type M 3 BiX 6 (M = Rb, Cs; X = Br, I), which are sometimes referred to as "zero-dimensional perovskites", because of their isolated [BiX 6 ] octahedra, or as "double halide perovskites". [2][3][4][5] One of the major issues in the application of bismuth halide absorber materials is their inherent tendency to hydrolyze. The binary bismuth trihalides react with liquid or gaseous water to form oxide halides, preferably BiOX.…”

Section: Introductionmentioning

confidence: 99%

The Polymorphic Nature of M₃BiBr₆ Halides (M=Cs, Rb) and their Reversible Intercalation with Water to Isomorphous Hydrates at Room Temperature

Chang

Doert

Ruck

2021

Zeitschrift anorg allge chemie

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Bismuthates with composition M3BiBr6 (M=Rb, Cs) form series of polymorphs capable of reversible H2O incorporation at room temperature. The host compounds were synthesized by annealing mixtures of MBr/BiBr3, or by precipitation from acidic solution and removing water molecules from the host framework of the hydrates in a thermal dehydration reaction. While the compound oP‐Rb3BiBr6 (space group Pbnm) is known from previous work, mP‐Rb3BiBr6 crystallizes with a new type of structure (space group P21/c). For Cs3BiBr6, the oP‐phase crystallizes isostructural to Cs3NdCl6 (space group Pbcm), the mC‐phase isostructural to Cs3BiCl6 (space group C2/c) and the tP‐phase isostructural to Tl3BiCl6 (space group P42/m). All crystal structures were refined from single crystal X‐ray diffraction data. In both systems, the crystal structures of orthorhombic and the monoclinic phases are polytypes and differ by stacking sequence only. By intercalation of water molecules, all polytypes of M3BiBr6 transform to semi‐hydrates M3BiBr6 ⋅ 1/2 H2O. Both, the incorporation of water and the reverse process proceed without the host structure being changed. The inclusion of crystal water was also confirmed by IR‐spectroscopy, thermal gravimetric analysis and mass spectrometry. The modification tP‐Cs3BiBr6 features a crystal structure with higher density and does not accommodate water.

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Heating-up synthesis of cesium bismuth bromide perovskite nanocrystals with tailored composition, morphology, and optical properties

Abstract: Lead-free cesium bismuth bromide perovskite nanocrystals are synthesized via the heating-up method with tailored morphology and optical properties.

Cited by 28 publications

References 65 publications

An All‐Solid‐State Bromide‐Ion Battery

An All‐Solid‐State Bromide‐Ion Battery

Recent Advances and Opportunities of Lead-Free Perovskite Nanocrystal for Optoelectronic Application

The Polymorphic Nature of M₃BiBr₆ Halides (M=Cs, Rb) and their Reversible Intercalation with Water to Isomorphous Hydrates at Room Temperature

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Heating-up synthesis of cesium bismuth bromide perovskite nanocrystals with tailored composition, morphology, and optical properties

Abstract: Lead-free cesium bismuth bromide perovskite nanocrystals are synthesized via the heating-up method with tailored morphology and optical properties.

Cited by 28 publications

References 65 publications

An All‐Solid‐State Bromide‐Ion Battery

An All‐Solid‐State Bromide‐Ion Battery

Recent Advances and Opportunities of Lead-Free Perovskite Nanocrystal for Optoelectronic Application

The Polymorphic Nature of M3BiBr6 Halides (M=Cs, Rb) and their Reversible Intercalation with Water to Isomorphous Hydrates at Room Temperature

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The Polymorphic Nature of M₃BiBr₆ Halides (M=Cs, Rb) and their Reversible Intercalation with Water to Isomorphous Hydrates at Room Temperature