Micron-Size Two-Dimensional Methylammonium Lead Halide Perovskites.

@article{Klein2019MicronSizeTM,
  title={Micron-Size Two-Dimensional Methylammonium Lead Halide Perovskites.},
  author={Eugen Klein and Andr{\'e}s Black and {\"O}znur Tokmak and Christian Strelow and Rostyslav Lesyuk and Christian Klinke},
  journal={ACS nano},
  year={2019}
}
Hybrid lead halide perovskites with 2D stacking structures have recently emerged as promising materials for optoelectronic applications. We report a method for growing 2D nanosheets of hybrid lead halide perovskites (I, Br and Cl), with tunable lateral sizes ranging from 0.05 to 8 μm and a structure consisting of n stacked monolayers separated by long alkylamines, tunable from bulk down to n = 1. The key to obtaining such a wide range of perovskite properties hinged on utilizing the respective… 
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References

SHOWING 1-10 OF 45 REFERENCES

Emerging two-dimensional halide perovskite nanomaterials

Halide-based perovskites have been found to be promising semiconductor materials for a variety of electronic and optoelectronic devices with high performance, including solar cells, light emitting

Ruddlesden-Popper Hybrid Lead Iodide Perovskite 2D Homologous Semiconductors

The hybrid two-dimensional (2D) halide perovskites have recently drawn significant interest because they can serve as excellent photoabsorbers in perovskite solar cells. Here we present the large

Quantum Size Effect in Organometal Halide Perovskite Nanoplatelets.

TLDR
Understanding of the quantum size effects in perovskite nanoplatelets and the ability to tune them provide an additional method with which to manipulate the optical properties of organometal halide perovkites.

Long-Distance Charge Carrier Funneling in Perovskite Nanowires Enabled by Built-in Halide Gradient.

TLDR
The successful synthesis of bromide-gradient CH3NH3PbBrxI3-x single-crystalline nanowires (NWs) is reported, which might find applications in various optoelectronic devices requiring long-distance and directional delivery of excitation energy.

Colloidal Organohalide Perovskite Nanoplatelets Exhibiting Quantum Confinement.

TLDR
Colloidal nanoplatelets with predominantly single unit cell thickness and submicron lateral dimensions are obtained, which are stable in solution and exhibit a sharp excitonic absorption feature 0.5 eV blue-shifted from that of the three-dimensional bulk MAPbBr3 phase, representing a new addition to the growing family of colloidal two-dimensional nanostructures.

Highly Tunable Colloidal Perovskite Nanoplatelets through Variable Cation, Metal, and Halide Composition.

TLDR
The results demonstrate the versatility of colloidal perovskite nanoplatelets as a material platform, with tunability extending from the deep-UV, across the visible, into the near-IR.

Colloidal Synthesis of Quantum Confined Single Crystal CsPbBr3 Nanosheets with Lateral Size Control up to the Micrometer Range

TLDR
The nontemplated colloidal synthesis of single crystal CsPbBr3 perovskite nanosheets with lateral sizes up to a few micrometers and with thickness of just a few unit cells is reported in the strong quantum confinement regime.

Perovskite energy funnels for efficient light-emitting diodes.

TLDR
A perovskite mixed material comprising a series of differently quantum-size-tuned grains that funnels photoexcitations to the lowest-bandgap light-emitter in the mixture functions as charge carrier concentrators, ensuring that radiative recombination successfully outcompetes trapping and hence non-radiatives recombination.

On the Thermal and Thermodynamic (In)Stability of Methylammonium Lead Halide Perovskites

TLDR
The measurements demonstrate that all the materials decompose to the corresponding solid lead (II) halide and gaseous methylamine and hydrogen halide, and the decomposition is well detectable even at moderate temperatures (~60 °C).

Tailoring the height of ultrathin PbS nanosheets and their application as field-effect transistors.

TLDR
Lead sulfide nanosheets with a lateral size of several micrometers are synthesized and it is shown how their height can be tuned by the variation of the ligand concentrations, which has a decisive impact on their electronic properties.