Low‐dimensional metal halide perovskites and related optoelectronic applications

Zhu, Pengchen; Zhu, Jing

doi:10.1002/inf2.12086

Cited by 82 publications

(78 citation statements)

References 255 publications

(630 reference statements)

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“…[59] It is worth mentioning that the mechanical exfoliation method is rather appropriate for the investigation of fundamental materials properties of 2DHPs but might not be suitable for large-scale production due to the difficulty of size and thickness control. [46] Compared to the vapor-phase and colloidal growth methods, the solution-based spin coating method has significant advantages, including its simplicity, low-cost fabrication, and particularly low-temperature operations, which make it most appropriate for the film synthesis of 2DHPs. [12,37,38,54,55,80,87,107,[140][141][142][143] Herein we mainly focus on the solution-based spin-coating approach and present a comprehensive review for the whole process, along with its remarkable features.…”

Section: Synthesismentioning

confidence: 99%

“…An introduction of the other methods for the synthesis of 2DHPs can be found in several recent review articles. [30,42,46,144,145] Figure 5a shows a schematic illustration of the solution-based spin-coating approach for the synthesis of thin films of hybrid perovskites. Halide perovskite solutions are typically prepared by dissolving organic and inorganic precursors in the dimethylformamide (DMF) solvent.…”

Section: Synthesismentioning

confidence: 99%

“…2D hybrid perovskites (2DHPs) offer a promising solution to overcome this instability issue. [ 37–47 ] The 2D nature refers to the layer structure of corner‐sharing inorganic octahedra. These inorganic metal halide layers are interdigitated between bulky organic molecules such as butylammonium (BA:

{CH}_{3} {{(CH}_{2})}_{3} {NH}_{3}^{+}

).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

2D Hybrid Halide Perovskites: Synthesis, Properties, and Applications

Wong

Yang

2020

Solar RRL

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The hybrid organic-inorganic halide perovskites have emerged as one class of most promising light-harvesting materials for the next-generation solar cells because of their exceptional optoelectronic properties and low-temperature solution processability that allows for large-scale fabrication. [1-14] The hybrid halide perovskites are one class of semiconductors in a formula of ABX 3 that comprises a network of corner-sharing BX 6 octahedra. In this structure, A is an organic cation such as methylammonium (MA: CH 3 NH þ 3); B is a divalent metal cation such as Pb 2þ and Sn 2þ , located in the center; and X is a monovalent anion such as Cl À , Br À , and I À. These structural and compositional features determine their exceptional optoelectronic properties such as tunable bandgaps, [6-11] high absorption coefficient, [7-9,12-14] long carrier diffusion length [14-17] and lifetime, [6,17-23] low trap density, [16,17] and high carrier mobility. [7,8,14,17,24-27] Just in the past few years, the power conversion efficiency (PCE) of these halide perovskites solar cells at labscale testing has increased from 3.8% to 25.2% (in the perovskite/silicon tandem device). [28] Despite promising applications of halide perovskites in the photovoltaic industry, there are still several major challenges that inhibit their large-scale industrial applications. [29-32] These challenges include poor stability in ambient conditions, particularly in the moisture environment, and the demand for lead-free perovskites. For instance, ðMAÞPbI 3 will degrade into MAI and PbI 2 in ambient conditions in which the water molecules will facilitate the degradation process, sharply dropping perovskite thin film absorption in a matter of days. [33] Although encapsulation can mitigate the degradation from water molecules, [34] the hybrid perovskites were considered as intrinsically unstable in the long term due to unfavorable formation enthalpies. [35,36] 2D hybrid perovskites (2DHPs) offer a promising solution to overcome this instability issue. [37-47] The 2D nature refers to the layer structure of corner-sharing inorganic octahedra. These inorganic metal halide layers are interdigitated between bulky organic molecules such as butylammonium (BA: CH 3 ðCH 2 Þ 3 NH þ 3). The bulky organic molecules are bonded to the inorganic octahedra via hydrogen bonds, causing the large hydrophobic chain to orient away from the inorganic perovskite layers. This configuration forms organic bilayers that separate neighboring sheets, creating a repeating pattern of organic and inorganic layers that define the 2DHP crystal structure, see Figure 1. 2DHPs demonstrate some advantageous materials properties compared to the 3D hybrid perovskites (3DHPs), including high materials stability and robustness in the presence of water, [39,50] reasonable performance, and cheap solution processability. [37,51-54] Moreover, the interchangeability of the large organic cations and the control of layer dimensionality allow for greater tunability and flexibility of the physical and optoelect...

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Section: Synthesismentioning

confidence: 99%

Section: Synthesismentioning

confidence: 99%

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2D Hybrid Halide Perovskites: Synthesis, Properties, and Applications

Wong

Yang

2020

Solar RRL

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“…This appealing advantage has resulted in a number of high-performance PeLEDs in recent years. [102] Moreover, the processing technique also plays a pivotal role in improving the film quality, such as two-step and anti-solvent deposition (discussed in Section 2.4.1).…”

Section: Film Growth and Qualitymentioning

confidence: 99%

Color Tuning for Perovskite Light-Emitting Diodes

2020

Linköping Studies in Science and Technology. Dissertations

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Metal halide perovskites (MHPs) are recognized as promising semiconductor materials for a variety of optical and electrical device applications due to their cost-effective and outstanding optoelectronic properties. As one of the most significant applications, perovskite light-emitting diodes (PeLEDs) hold promise for future lighting and display technologies, attributed to their high photoluminescence quantum yield (PLQY), high color purity, and tunable emission color. The emission colors of PeLEDs can be tuned by mixing the halide anions, adjusting the size of perovskite nanocrystals, or changing the dimensionality of perovskites. However, in practice, all these different approaches have their own advantages and challenges. This thesis centres around the color tunability of perovskites, aiming to develop PeLEDs with different colors using different approaches.

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“…Schematic illustration of low-dimensional perovskites and 3D perovskite crystal structures (reproduced with permission of Ref [47]…”

mentioning

confidence: 99%

Perovskite Nanoparticles

Gültekin¹,

Havare²,

Siyahjani³

et al. 2021

Perovskite and Piezoelectric Materials

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2D perovskite nanoparticles have a great potential for using in optoelectronic devices such as Solar Cells and Light Emitting Diodes within their tuneable optic and structural properties. In this chapter, it is aimed to express “relation between chemical structures and photo-physical behaviours of perovskite nanoparticles and milestones for their electronic applications”. Initially, general synthesis methods of perovskite nanoparticles have been explained. Furthermore, advantages and disadvantages of the methods have been discussed. After the synthesis, formation of 2D perovskite crystal and effects on shape factor, particle size and uniformity of perovskite have been explained in detail. Beside these, optic properties of luminescent perovskite nanoparticles have been summarized a long with spectral band tuning via size and composition changes. In addition, since their different optical properties and relatively more stable chemical structure under ambient conditions, a comprehensive compilation of opto-electronic applications of 2D perovskite nanoparticles have been prepared.

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Low‐dimensional metal halide perovskites and related optoelectronic applications

Cited by 82 publications

References 255 publications

2D Hybrid Halide Perovskites: Synthesis, Properties, and Applications

2D Hybrid Halide Perovskites: Synthesis, Properties, and Applications

Color Tuning for Perovskite Light-Emitting Diodes

Perovskite Nanoparticles

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