Low‐Dimensional Organic–Inorganic Halide Perovskite: Structure, Properties, and Applications

Misra, Ravi K.; Cohen, Bat‐El; Iagher, Lior; Etgar, Lioz

doi:10.1002/cssc.201701026

Cited by 106 publications

(96 citation statements)

References 54 publications

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“…It was demonstrated that by changing the capping organic ligand, the morphology of CsPbX 3 could be effectively tuned from nanocubes to nanowires and nanoplatelets with different sizes (Figure 4) [73][74][75]. The synthesis, properties, and applications of morphological low dimensional metal halide perovskites have been well reviewed in several publications [45,46,65,[76][77][78].…”

Section: Morphological Low Dimensional Metal Halide Perovskitesmentioning

confidence: 99%

Organic–inorganic metal halide hybrids beyond perovskites

Zhou

Lin

Lee

et al. 2018

Materials Research Letters

102

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Organic-inorganic metal halide hybrids have emerged as new generation functional materials with exceptional structure and property tunability for a variety of applications. Besides the most investigated ABX 3 metal halide perovskites, a variety of hybrids consisting of a wide range of organic cations and metal halide anions have been developed and studied recently. Here, we provide an overview of these new materials possessing various crystallographic structures, including double perovskites, low dimensional hybrids, and other perovskite-related materials. We discuss their syntheses, functional properties, and optoelectronic applications. Challenges and opportunities are then laid out for these hybrid materials beyond perovskites. IMPACT STATEMENTBy choosing appropriate organic cations and metal halide anions, single crystalline ionically bonded hybrid materials can be assembled to possess various structures beyond the well-known ABX 3 perovskite. These hybrid materials exhibit exciting new properties with potential applications in a variety of areas. ARTICLE HISTORY

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Section: Morphological Low Dimensional Metal Halide Perovskitesmentioning

confidence: 99%

Organic–inorganic metal halide hybrids beyond perovskites

Zhou

Lin

Lee

et al. 2018

Materials Research Letters

102

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“…[6,7] Very recently, quasi-2D Ruddlesden-Popper perovskites, a family of layered compounds with tunable semiconductor characteristics, have also been explored for optoelectronic devices. [12,13] Furthermore, layered perovskites afford specific advantages over other inorganic 2D been intensively investigated, [28][29][30][31][32] the investigation of excitonexciton interactions, biexcitons, and their recombination dynamics remains modest. [12,13] Furthermore, layered perovskites afford specific advantages over other inorganic 2D been intensively investigated, [28][29][30][31][32] the investigation of excitonexciton interactions, biexcitons, and their recombination dynamics remains modest.…”

Section: Introductionmentioning

confidence: 99%

Band‐Edge Exciton Fine Structure and Exciton Recombination Dynamics in Single Crystals of Layered Hybrid Perovskites

Fang

Yang

Adjokatse

et al. 2019

Adv Funct Materials

118

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2D perovskite materials have recently reattracted intense research interest for applications in photovoltaics and optoelectronics. As a consequence of the dielectric and quantum confinement effect, they show strongly bound and stable excitons at room temperature. Here, the band-edge exciton fine structure and in particular its exciton and biexciton dynamics in high quality crystals of (PEA) 2 PbI 4 are investigated. A comparison of bulk and surface exciton lifetimes yields a room temperature surface recombination velocity of 2 × 10 3 cm s −1 and an intrinsic lifetime of 185 ns. Biexciton emission is evidenced at room temperature, with a binding energy of ≈45 meV and a lifetime of 80 ps. At low temperature, exciton state splitting is observed, which is caused by the electron-hole exchange interaction. Transient photoluminescence resolves the low-lying dark exciton state, with a bright/dark splitting energy estimated to be 10 meV. This work contributes to the understanding of the complex scenario of the elementary photoexcitations in 2D perovskites. materials such as transition metal dichalcogenides, phosphorene, and graphene. They can be easily grown by both solution methods and vapor transport methods at low temperature, [14][15][16][17] with a tunable bulk direct bandgap. [18] These advantages make them appealing for future optoelectronic and photonic applications.Unlike their 3D counterparts, the dielectric and quantum confinement of carriers in the 2D perovskite layers gives rise to unusually strong excitonic effects. [19,20] It has been experimentally observed that excitons are tightly confined in the inorganic layers with binding energy as high as a few hundred millielectronvolts (significantly higher than that of 3D perovskites). [21] This greatly enhanced exciton binding energy makes them particularly interesting for light-emitting applications. [8,22] Moreover, 2D perovskites can exhibit a variety of multiexciton species, including biexcitons and trions. [20,23,24] The presence of these quasiparticles is exciting due to their unique role, leading to a better understanding of many body effects and their great promise for photonic applications. In addition, recent experiments reveal an important role of electron-phonon couplings on the exciton dynamics in 2D lead-iodide perovskite, suggesting a complex scenario for carrier relaxation and exciton formation. [25,26] It is therefore crucial to understand elementary photoexcitations in these layered materials. However, exciton fine structures and their properties are usually masked by local energy fluctuations resulting from disorder in thin films or broad emission due to the formation of self-trapped excitons. [27] Whereas their steady-state optical properties have

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“…Despite of the rapid progress of 3D perovskites, very limited effort has been endeavored to discuss the development of low‐dimensional perovskites, and there have been only a few review articles that discuss the material properties, structure design, and potential applications . More recently, breakthrough results have been successfully demonstrated by employing low‐dimensional perovskites in addressing the challenges of stability and toxicity in solar cells and other optoelectronic devices .…”

Section: Introductionmentioning

confidence: 99%

Progress and Perspective in Low‐Dimensional Metal Halide Perovskites for Optoelectronic Applications

et al. 2018

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Organic–inorganic metal halide perovskites with three‐dimensional (3D) crystal structures have attracted tremendous attention due to their successful demonstrations in varying optoelectronic applications, particularly in photovoltaics (PV). Despite the rapid progress in achieving high performance in optoelectronic devices, the long‐term instability and lead toxicity in 3D perovskites are still two major challenges hindering their steps toward commercialization. To overcome these issues, a series of low‐dimensional perovskites and their derivatives are investigated, aiming at prolonging device lifetime and reducing toxicity. Herein, recent advances of low‐dimensional perovskites and their derivatives in PV with a focus on enhanced long‐term stability and reduced toxicity are reviewed. The fundamental understanding on their crystal structures and properties is presented. Beyond PV, the exploration of low‐dimensional perovskites for other promising optoelectronic applications is also summarized. In addition, the current challenges and future opportunities are discussed to provide a roadmap to the development of low‐dimensional perovskites.

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Low‐Dimensional Organic–Inorganic Halide Perovskite: Structure, Properties, and Applications

Cited by 106 publications

References 54 publications

Organic–inorganic metal halide hybrids beyond perovskites

Organic–inorganic metal halide hybrids beyond perovskites

Band‐Edge Exciton Fine Structure and Exciton Recombination Dynamics in Single Crystals of Layered Hybrid Perovskites

Progress and Perspective in Low‐Dimensional Metal Halide Perovskites for Optoelectronic Applications

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