Thickness dependent properties of ultrathin perovskite nanosheets with Ruddlesden–Popper-like atomic stackings

Zhong, Jingxian; Sun, Yan; Liu, Bowen; Zhu, Chao; Cao, Yaoyao; Sun, Encheng; He, Kaiyue; Zhang, Wei; Liao, Kan; Wang, Xiaoyong; Liu, Zheng; Wang, Lin

doi:10.1039/d1nr02939h

Cited by 3 publications

(4 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3). In comparison with previous research efforts 17,[55][56][57][58][59][60][61][62][63] , our method yields the largest lateral sizes for mono-to few-layer perovskites (Fig. 4g).…”

Section: Conversion To Mono-to Few-layer Perovskitesmentioning

confidence: 44%

“…f Photoluminescence spectra of 2D perovskites PEA 2 PbI 4 and NMA 2 PbI 4 , as well as 3D perovskites MAPbI 3 and FAPbI 3 .The blue area represents 2D perovskite and the red area represents 3D perovskite. g Comparison of the lateral size of monolayer and bilayer halide perovskites prepared using our method and other methods17,[55][56][57][58][59][60][61][62][63] . The terms of "vapor", "mechanical", and "liquid" stand for vapor-phase, mechanical exfoliation, and liquid-phase methods, respectively.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Growth of millimeter-sized 2D metal iodide crystals induced by ion-specific preference at water-air interfaces

Zhong,

Zhou,

Bai

et al. 2024

Nat Commun

Self Cite

View full text Add to dashboard Cite

Conventional liquid-phase methods lack precise control in synthesizing and processing materials with macroscopic sizes and atomic thicknesses. Water interfaces are ubiquitous and unique in catalyzing many chemical reactions. However, investigations on two-dimensional (2D) materials related to water interfaces remain limited. Here we report the growth of millimeter-sized 2D PbI2 single crystals at the water-air interface. The growth mechanism is based on an inherent ion-specific preference, i.e. iodine and lead ions tend to remain at the water-air interface and in bulk water, respectively. The spontaneous accumulation and in-plane arrangement within the 2D crystal of iodide ions at the water-air interface leads to the unique crystallization of PbI2 as well as other metal iodides. In particular, PbI2 crystals can be customized to specific thicknesses and further transformed into millimeter-sized mono- to few-layer perovskites. Additionally, we have developed water-based techniques, including water-soaking, spin-coating, water-etching, and water-flow-assisted transfer to recycle, thin, pattern, and position PbI2, and subsequently, perovskites. Our water-interface mediated synthesis and processing methods represents a significant advancement in achieving simple, cost-effective, and energy-efficient production of functional materials and their integrated devices.

show abstract

“…3). In comparison with previous research efforts 17,[55][56][57][58][59][60][61][62][63] , our method yields the largest lateral sizes for mono-to few-layer perovskites (Fig. 4g).…”

Section: Conversion To Mono-to Few-layer Perovskitesmentioning

confidence: 44%

mentioning

confidence: 99%

Growth of millimeter-sized 2D metal iodide crystals induced by ion-specific preference at water-air interfaces

Zhong,

Zhou,

Bai

et al. 2024

Nat Commun

Self Cite

View full text Add to dashboard Cite

show abstract

“…18−20 Such vapor-phase growth is generally carried out in a closed and pure growth space. 21 It can achieve direct growth of materials on the target substrates and can control the properties of the product by multidimensional adjustment of the growth conditions. So far, research on CVD growth of low-dimensional tin-based perovskites is in its infancy.…”

Section: Introductionmentioning

confidence: 99%

“…At present, most lead-free all-inorganic perovskites are obtained through liquid-phase methods. It means that the synthesis must be carried out in complex solution, resulting in high densities of defects and impurities in the products. − Recently, chemical vapor deposition (CVD) has shown its potential for obtaining lead-based perovskites with controllable morphology and high quality. − Such vapor-phase growth is generally carried out in a closed and pure growth space . It can achieve direct growth of materials on the target substrates and can control the properties of the product by multidimensional adjustment of the growth conditions.…”

Section: Introductionmentioning

confidence: 99%

Space-Confined Chemical Vapor Deposition Synthesis of All-Inorganic CsSnI₃ Perovskite Nanosheets

Yin,

Shi,

Wang

et al. 2024

J. Phys. Chem. C

Self Cite

View full text Add to dashboard Cite

All-inorganic two-dimensional (2D) CsSnI3 nanosheets exhibit reduced biotoxicity, high mobility, and suitable band gap, making them highly promising for nanoelectronic or optoelectronic applications. However, the synthesis of 2D CsSnI3 nanosheets remains challenging. In this study, 2D CsSnI3 nanosheets were successfully synthesized by using a space-confined chemical vapor deposition (CVD) method for the first time. The average thickness and lateral size of 2D CsSnI3 nanosheets were well-controlled by adjusting the gap distance within the confined space and the growth temperature. This approach also facilitated in situ construction of CsSnI3-based vertical heterostructures by directly growing CsSnI3 nanosheets on the surface of target WSe2. The space-confined CVD growth of lead-free perovskite nanosheets will provide more options for the development of low-dimensional perovskite-based optoelectronic devices.

show abstract

Materials design and preparation of ultrathin two-dimensional metal halide perovskites

Zhang,

Zhao,

Zhang

et al. 2024

Nano Res.

View full text Add to dashboard Cite

Thickness dependent properties of ultrathin perovskite nanosheets with Ruddlesden–Popper-like atomic stackings

Abstract: Ruddlesden–Popper perovskites possess rich variety and multiple phases due to their mixed organic cations and variable layer numbers. However, the direct observation of these phases and their optical performance in...

Cited by 3 publications

References 41 publications

Growth of millimeter-sized 2D metal iodide crystals induced by ion-specific preference at water-air interfaces

Growth of millimeter-sized 2D metal iodide crystals induced by ion-specific preference at water-air interfaces

Space-Confined Chemical Vapor Deposition Synthesis of All-Inorganic CsSnI₃ Perovskite Nanosheets

Materials design and preparation of ultrathin two-dimensional metal halide perovskites

Contact Info

Product

Resources

About

Thickness dependent properties of ultrathin perovskite nanosheets with Ruddlesden–Popper-like atomic stackings

Abstract: Ruddlesden–Popper perovskites possess rich variety and multiple phases due to their mixed organic cations and variable layer numbers. However, the direct observation of these phases and their optical performance in...

Cited by 3 publications

References 41 publications

Growth of millimeter-sized 2D metal iodide crystals induced by ion-specific preference at water-air interfaces

Growth of millimeter-sized 2D metal iodide crystals induced by ion-specific preference at water-air interfaces

Space-Confined Chemical Vapor Deposition Synthesis of All-Inorganic CsSnI3 Perovskite Nanosheets

Materials design and preparation of ultrathin two-dimensional metal halide perovskites

Contact Info

Product

Resources

About

Space-Confined Chemical Vapor Deposition Synthesis of All-Inorganic CsSnI₃ Perovskite Nanosheets