THE CRYSTAL STRUCTURE OF LEAD(II) IODIDE-DIMETHYLSULPHOXIDE(1/2), PbI2(dmso)2

Miyamae, Hiroshi; Numahata, Yoshinaho; Nagata, Miharu

doi:10.1246/cl.1980.663

Cited by 90 publications

(76 citation statements)

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“…On the other hand, GBL could not be used as a solvent because of the very low solubility of MAPbBr 3 (<0.05 g ml −1 at both room temperature and 80 °C). The effect of the different solvents could be related to their varying degrees of coordination with the precursors, as it was previously reported that DMSO may retard the crystallization process because of its strong binding to the lead precursor232425.…”

Section: Resultsmentioning

confidence: 99%

High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization

et al. 2015

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Single crystals of methylammonium lead trihalide perovskites (MAPbX3; MA=CH3NH3+, X=Br− or I−) have shown remarkably low trap density and charge transport properties; however, growth of such high-quality semiconductors is a time-consuming process. Here we present a rapid crystal growth process to obtain MAPbX3 single crystals, an order of magnitude faster than previous reports. The process is based on our observation of the substantial decrease of MAPbX3 solubility, in certain solvents, at elevated temperatures. The crystals can be both size- and shape-controlled by manipulating the different crystallization parameters. Despite the rapidity of the method, the grown crystals exhibit transport properties and trap densities comparable to the highest quality MAPbX3 reported to date. The phenomenon of inverse or retrograde solubility and its correlated inverse temperature crystallization strategy present a major step forward for advancing the field on perovskite crystallization.

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Section: Resultsmentioning

confidence: 99%

High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization

et al. 2015

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“…Meanwhile, the PbI 2 (DMSO) 2 complex was synthesized by a solution-processed approach at room temperature 33 and its crystal structure was solved by the heavy-atom method that refined the positional and anisotropic thermal parameters for non-hydrogen atomes by the block-diagonal least-squares method. 34 The space group was assumed to be C mmm , which is completely different from PbI 2 crystal. In the structure of PbI 2 (DMSO) 2 complex, the crystal has skeletal linear chain structure consisting of [> Pb < I I >] n , two DMSO molecules coordinate to the Pb atom through their O atoms in trans position, and the direction of the Pb−O bond formation is indeterminate.…”

Section: Journal Of the American Chemical Societymentioning

confidence: 99%

Controllable Grain Morphology of Perovskite Absorber Film by Molecular Self-Assembly toward Efficient Solar Cell Exceeding 17%

et al. 2015

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The highly developed crystallization process with respect to perovskite thin films is favorable for efficient solar cells. Here, an innovative intermolecular self-assembly approach was employed to retard the crystallization of PbI2 in dimethylformamide (DMF) by additional solvent of dimethyl sulfoxide (DMSO), which was proved to be capable of coordinating with PbI2 by coordinate covalent bond. The obtained PbI2(DMSO)x (0 ≤ x ≤ 1.86) complexes tend to be closely packed by means of intermolecular self-assembly. Afterward, an intramolecular exchange of DMSO with CH3NH3I (MAI) enabled the complexes to deform their shape and finally to reorganize to be an ultraflat and dense thin film of CH3NH3PbI3. The controllable grain morphology of perovskite thin film allows obtaining a power conversion efficiency (PCE) above 17% and a stabilized power output above 16% within 240 s by controlling DMSO species in the complex-precursor system (CPS). The present study gives a reproductive and facile strategy toward high quality of perovskite thin films and efficient solar cells.

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“…This is apparent from the PbO bond length of 2.38(6) Å in DMSO as opposed to 2.431(4) Å in DMF. [31,32] The strong complex bond between the lead precursor and DMSO molecules leads to decelerated reaction kinetics in the conversion to the perovskite phase (cf. Figure 2a).…”

Section: Crystallization Through Complex Formationmentioning

confidence: 99%

Capturing the Sun: A Review of the Challenges and Perspectives of Perovskite Solar Cells

Petrus

Schlipf

Cheng

et al. 2017

Advanced Energy Materials

318

201

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following statement: These materials can be processed from solution and yet exhibit optoelectronic materials properties described in classic solid-state physics textbooks. This unprecedented combination has led to photovoltaic devices that can be processed at room temperature and achieve performance levels similar to industry giant polycrystalline silicon, from a starting point of 3.8% in 2009. [1][2][3][4] The first light-emitting electrochemical cells [5] and diodes [6][7][8] have also been introduced recently, leading to tunable light emission spectra and internal quantum efficiencies exceeding 15%.The road towards these achievements has been marked by a constant improvement of perovskite deposition techniques fueled by our increasing understanding of the crystallization processes. The choice of deposition technique, either from solution or vapor, and the composition and order in which precursor species are applied has a great influence on the crystallization kinetics. Here, one can distinguish one-step methods where the perovskite is formed from a precursor mixture dissolved in a common solution, and two-step methods where the inorganic compound is deposited first and transformed to the perovskite phase later by addition of the organic constituents. [9][10][11] Furthermore, many parameters during processing can have an effect on the crystallization mechanism and consequently on film morphology, such as the choice of solvents, concentrations and processing additives that are often not incorporated into the final product. [11][12][13] We discuss this aspect in Section 2, where we focus our attention on the most commonly employed solution-based techniques. Additionally, as for any new technology trying to displace an incumbent technology, higher efficiencies, lower costs, reproducibility, stability, and sustainability are paramount. In particular, reproducibility has been a major challenge in perovskite solar cells from the beginning: small variations in morphology, like crystal size, film roughness, and pinholes can have detrimental effects on photovoltaic performance. [14] On the other hand, current-voltage measurements often showed a hysteresis that is rarely seen in other photovoltaic technologies. [15] These topics are highlighted in Sections 3 and 4. Finally, in Section 5 we discuss the framework for market introduction, such as cost reduction by choosing low-cost charge transport layers, or how the lifetime of perovskite absorbers can be extended by the choice of materials composition.Hybrid metal halide perovskites have become one of the hottest topics in optoelectronic materials research in recent years. Not only have they surpassed everyone's expectations and achieved similar performance as tried and true polycrystalline silicon photovoltaic devices, but they are also finding applications in a variety of different fields, including lighting. The main advantages of hybrid metal halide perovskites are simple processability, compatible with large-scale solution processing such as roll-to-roll printing, a...

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THE CRYSTAL STRUCTURE OF LEAD(II) IODIDE-DIMETHYLSULPHOXIDE(1/2), PbI2(dmso)2

Abstract: The crystal structure of the title compound has been determined by X-ray diffractometry. Two dimethylsulphoxide molecules co-ordinate to the Pb atom through their O atoms in trans position. The skeletal structure is a linear chain of [>Pb〈II〉] unit.

Cited by 90 publications

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High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization

High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization

Controllable Grain Morphology of Perovskite Absorber Film by Molecular Self-Assembly toward Efficient Solar Cell Exceeding 17%

Capturing the Sun: A Review of the Challenges and Perspectives of Perovskite Solar Cells

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THE CRYSTAL STRUCTURE OF LEAD(II) IODIDE-DIMETHYLSULPHOXIDE(1/2), PbI2(dmso)2

Abstract: The crystal structure of the title compound has been determined by X-ray diffractometry. Two dimethylsulphoxide molecules co-ordinate to the Pb atom through their O atoms in trans position. The skeletal structure is a linear chain of [&gt;Pb〈II〉] unit.

Cited by 90 publications

References 0 publications

High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization

High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization

Controllable Grain Morphology of Perovskite Absorber Film by Molecular Self-Assembly toward Efficient Solar Cell Exceeding 17%

Capturing the Sun: A Review of the Challenges and Perspectives of Perovskite Solar Cells

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Product

Resources

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Abstract: The crystal structure of the title compound has been determined by X-ray diffractometry. Two dimethylsulphoxide molecules co-ordinate to the Pb atom through their O atoms in trans position. The skeletal structure is a linear chain of [>Pb〈II〉] unit.