Crystal structure of rubidium triiodostannate(II), RbSnI<sub>3</sub>

Thiele, Günther; Serr, Barbara R.

doi:10.1524/zkri.1995.210.1.64

Cited by 22 publications

(16 citation statements)

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“…RbSnI 3 has been reported to exist in a nonperovskite 2D Y phase structure owing to the small cationic size of Rb + . 38 , 66 Nevertheless, for comparison with the alloys Rb y Cs 1– y SnI 3 , the band gaps of RbSnI 3 in a 3D γ phase are also predicted. In addition, all band gaps of α structures are also provided in the Supporting Information in Table S2 and Figure S3 for comparison.…”

Section: Resultsmentioning

confidence: 93%

Stabilizing Lead-Free All-Inorganic Tin Halide Perovskites by Ion Exchange

et al. 2018

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Because of its thermal stability, lead-free composition, and nearly ideal optical and electronic properties, the orthorhombic CsSnI3 perovskite is considered promising as a light absorber for lead-free all-inorganic perovskite solar cells. However, the susceptibility of this three-dimensional perovskite toward oxidation in air has limited the development of solar cells based on this material. Here, we report the findings of a computational study which identifies promising RbyCs1–ySn(BrxI1–x)3 perovskites for solar cell applications, prepared by substituting cations (Rb for Cs) and anions (Br for I) in CsSnI3. We show the evolution of the material electronic structure as well as its thermal and structural stabilities upon gradual substitution. Importantly, we demonstrate how the unwanted yellow phase can be suppressed by substituting Br for I in CsSn(BrxI1–x)3 with x ≥ 1/3. We predict that substitution of Rb for Cs results in a highly homogeneous solid solution and therefore an improved film quality and applicability in solar cell devices.

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Section: Resultsmentioning

confidence: 93%

Stabilizing Lead-Free All-Inorganic Tin Halide Perovskites by Ion Exchange

et al. 2018

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“…Like other perovskites, our considered perovskites have been found in different phases. 7,17,18 However, we focus on the cubic phase, 6 as the perovskites with promising photovoltaic and optoelectronic properties are mostly cubic. 2–4 Nevertheless, studying the cubic phase of RbSnX 3 (X = Cl, Br, I) can provide a great opportunity to compare our results with other perovskites and it will lead to obtaining optimum properties for photovoltaics and optoelectronics.…”

Section: Introductionmentioning

confidence: 99%

RbSnX₃ (X = Cl, Br, I): promising lead-free metal halide perovskites for photovoltaics and optoelectronics

et al. 2022

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“…In part due to the toxicity of Pb 2+ ions, other metal halide perovskites are being investigated. Divalent tin is the most straightforward alternative to lead, considering their similar electronic configuration (group 14) and similar ionic radiuses . Furthermore, mixed Sn‐Pb iodide perovskites possess a lower bandgap than pure Pb and Sn ones, with applications in both single junction and tandem solar cells .…”

Section: Introductionmentioning

confidence: 99%

Mechanochemical Synthesis of Sn(II) and Sn(IV) Iodide Perovskites and Study of Their Structural, Chemical, Thermal, Optical, and Electrical Properties

et al. 2019

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Phase‐pure CsSnI3, FASnI3, Cs(PbSn)I3, FA(PbSn)I3 perovskites (FA = formamidinium = HC(NH2)2+) as well as the analogous so‐called vacancy‐ordered double perovskites Cs2SnI6 and FA2SnI6 are mechanochemically synthesized. The addition of SnF2 is found to be crucial for the synthesis of Cs‐containing perovskites but unnecessary for hybrid ones. All compounds show an absorption onset in the near‐infrared (NIR) region, which makes them especially relevant for photovoltaic applications. The addition of Pb(II) and SnF2 is crucial to improve the electronic properties in 3D Sn(II)‐based perovskites, in particular their charge carriers mobility (≈0.2 cm2 Vs−1) which is enhanced upon reduction of the dark carrier conductivity. Stokes‐shifted photoluminescence is observed on dry powders of Sn(II)‐based perovskites, which makes these materials promising for light‐emitting and sensing applications. Thermal stability of all compounds is examined, revealing no significant degradation up to at least 200 °C. This meets the requirements for standard operation conditions of most optoelectronic devices and is potentially compatible with thermal vacuum deposition of polycrystalline thin films.

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Crystal structure of rubidium triiodostannate(II), RbSnI₃

Cited by 22 publications

References 1 publication

Stabilizing Lead-Free All-Inorganic Tin Halide Perovskites by Ion Exchange

Stabilizing Lead-Free All-Inorganic Tin Halide Perovskites by Ion Exchange

RbSnX₃ (X = Cl, Br, I): promising lead-free metal halide perovskites for photovoltaics and optoelectronics

Mechanochemical Synthesis of Sn(II) and Sn(IV) Iodide Perovskites and Study of Their Structural, Chemical, Thermal, Optical, and Electrical Properties

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Crystal structure of rubidium triiodostannate(II), RbSnI3

Cited by 22 publications

References 1 publication

Stabilizing Lead-Free All-Inorganic Tin Halide Perovskites by Ion Exchange

Stabilizing Lead-Free All-Inorganic Tin Halide Perovskites by Ion Exchange

RbSnX3 (X = Cl, Br, I): promising lead-free metal halide perovskites for photovoltaics and optoelectronics

Mechanochemical Synthesis of Sn(II) and Sn(IV) Iodide Perovskites and Study of Their Structural, Chemical, Thermal, Optical, and Electrical Properties

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Product

Resources

About

Crystal structure of rubidium triiodostannate(II), RbSnI₃

RbSnX₃ (X = Cl, Br, I): promising lead-free metal halide perovskites for photovoltaics and optoelectronics