Managing Growth and Dimensionality of Quasi 2D Perovskite Single‐Crystalline Flakes for Tunable Excitons Orientation

Cinquino, Marco; Fieramosca, Antonio; Mastria, Rosanna; Polimeno, Laura; Moliterni, Anna; Oliéric, V.; Matsugaki, Naohiro; Panico, Riccardo; Giorgi, Milena De; Gigli, Giuseppe; Giannini, Cinzia; Rizzo, Aurora; Sanvitto, D.; Marco, Luisa De

doi:10.1002/adma.202102326

Cited by 35 publications

(33 citation statements)

References 45 publications

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“…Schematic illustration of new potassium iodide controlled synthesis. Reproduced with permission from ref . Copyright 2021 The Authors under Creative Commons CC BY license, published by John Wiley and Sons.…”

Section: Methods and Preparationmentioning

confidence: 99%

“…They prepared single crystals of n = 1 and n = 2 dodecylammonium lead iodide perovskite single crystals, (DA) 2 PbI 4 and (DA) 2 (MA)Pb 2 I 7 through a simple one-step antisolvent crystallization process, as is shown in Figure 15a,b. In 2021, they also pointed out the technical uncertainties of several current single-crystal RPP synthesis schemes; 129 that is, optimized parameters (i.e., concentration, mole ratio, and temperature) vary significantly by changing the precursors and are determined empirically from time to time. In addition, even small deviations from the optimal concentration can result in the growth of crystals containing impurities composed of thicker and/or thinner RPP.…”

Section: ■ Methods and Preparationmentioning

confidence: 99%

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Review on Organic–Inorganic Two-Dimensional Perovskite-Based Optoelectronic Devices

Han

Liu

et al. 2022

ACS Appl. Electron. Mater.

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Organic–inorganic two-dimensional (2D) perovskite is an optoelectronic material, with quantum-well structure and improved moisture stabilities, which has been widely used in various optoelectronic devices recently. In this review, the structure and properties of organic–inorganic 2D perovskite materials are first briefly introduced. After that, according to the different photoelectron coupling mechanisms, the recent progress of typical 2D perovskite-based optoelectronic devices is described in detail: including photodetectors, light-emitting diodes, solar cells, and lasers, as well as some optoelectronic devices (e.g., optical memory and optical synapses). We analyzed the influence of structure, manufacturing process, and material selection on device performance and showed promising progress in different applications. Subsequently, we proposed the possible breakthrough development direction of 2D perovskite-based optoelectronic devices in the coming years. This work points out the way for future progress of 2D perovskite-based optoelectronic devices, which is conducive to further improving device performance and inspiring designs of high-performance organic–inorganic 2D perovskite-based optoelectronic devices.

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Section: Methods and Preparationmentioning

confidence: 99%

Section: ■ Methods and Preparationmentioning

confidence: 99%

Review on Organic–Inorganic Two-Dimensional Perovskite-Based Optoelectronic Devices

Han

Liu

et al. 2022

ACS Appl. Electron. Mater.

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“…When the A cation is too small or the B cation is too large, the structure of the perovskite becomes distorted (0.7 < t < 0.9) and the crystal lattice changes from the high-symmetry cubic phase to a low-symmetry tetragonal or orthorhombic phase (Figure 1b,c). [22] On the contrary, when an oversized A cation is included (t > 1), this turns the 3D structure into layered 2D [23,24] or linear 1D structures such as Ruddlesden-Popper PVKs, [25,26] Dion-Jacobson PVKs, and the alternating-cation PVKs. [1,27]…”

Section: Crystal Structurementioning

confidence: 99%

“…On the contrary, when an oversized A cation is included ( t > 1), this turns the 3D structure into layered 2D [ 23,24 ] or linear 1D structures such as Ruddlesden–Popper PVKs, [ 25,26 ] Dion–Jacobson PVKs, and the alternating‐cation PVKs. [ 1,27 ]…”

Section: Crystal Structurementioning

confidence: 99%

Perovskite Single‐Crystal Solar Cells: Advances and Challenges

et al. 2022

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In just over a decade, the power conversion efficiency of metal‐halide perovskite solar cells has increased from 3.9% to 25.5%, suggesting this technology might be ready for large‐scale exploitation in industrial applications. Photovoltaic devices based on perovskite single crystals are emerging as a viable alternative to polycrystalline materials. Perovskite single crystals indeed possess lower trap state densities, higher carrier mobilities, and longer diffusion lengths, and potentially can achieve higher performance with respect to those fabricated with polycrystalline films, although their integration in a complete device needs particular attention and the use of specifically tailored growth techniques. In this review, recent advances on single‐crystal halide perovskites are reported. First, crystalline structure and fundamental properties of 3D perovskites are discussed, including the emerging mixed‐anion cation perovskites, and then the most popular growth methods with a focus on techniques that enable the implementation in photovoltaic devices are presented. Architectures and materials used to produce lateral and vertical solar cells are further introduced and recent improvements in device design and fabrication are summarized. Finally, the strategies used to solve the still open challenge on these materials regarding stability under environmental conditions are critically discussed and the view on the opportunities offered by halide perovskites is reflected.

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“…The facets can be tuned and device performance can be altered significantly by controlling the growth direction and crystallization kinetics. Surfactants and ligands have recently been discovered to have an important role in altering the surface energy of PSCs and achieving anisotropic growth. ,,,− Organic compounds act as additives in perovskite precursor solutions to control the formation of perovskite single crystals, affecting both nucleation and crystal growth processes. In perovskites, additives with a strong interaction with ions can control the pace of growth of distinct facets and, more critically, prevent the creation of point defects.…”

Section: Controlling the Anisotropic Growth Of Pscsmentioning

confidence: 99%

Anisotropy in Perovskite Single Crystals: From Fundamentals to Applications

Tailor

Satapathi

2022

J. Phys. Chem. C

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Single crystals of semiconductor materials have been extensively studied in optoelectronic applications because of the absence of grain boundary, lesser defects, and long-range order of crystallinity. Due to their multifaceted character, crystals are very often found to have significant anisotropic properties. These anisotropic properties lead to a considerable variation in their fundamental properties and optoelectronics applications. In the past decade, halide perovskites have emerged as one of the most exciting classes of semiconductors due to their rich photophysical properties leading to applications in solar cells, light-emitting diodes, photodetectors, etc. Especially, perovskite single crystals (PSCs) with an absence of grain boundaries, remarkably longer carrier diffusion lengths, significantly lower trap densities, and longrange order have received wide attention in large-scale device deployment. Interestingly, PSCs also exhibit strong anisotropy-dependent fundamental properties, and correspondingly their device applications are highly tunable. Here, in this feature article, we address a molecular perspective focusing on the structural, optical, and electronic anisotropy in PSCs. In addition, we discuss how anisotropy can affect the performance of PSCs-based devices. Furthermore, we highlight the future directions for implementing a fundamental understanding of the anisotropic response of PSCs to design novel and emergent optoelectronics devices.

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Managing Growth and Dimensionality of Quasi 2D Perovskite Single‐Crystalline Flakes for Tunable Excitons Orientation

Abstract: Figure 1. a) Schematic illustration of (C12) 2 (MA) n−1 Pb n I 3n+1 (with n = 2, 3, 4, and 5) and b) multiple quantum well (MQW) structure.

Cited by 35 publications

References 45 publications

Review on Organic–Inorganic Two-Dimensional Perovskite-Based Optoelectronic Devices

Review on Organic–Inorganic Two-Dimensional Perovskite-Based Optoelectronic Devices

Perovskite Single‐Crystal Solar Cells: Advances and Challenges

Anisotropy in Perovskite Single Crystals: From Fundamentals to Applications

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