Exfoliated Samples
Exfoliated Samples - Related Videos
08:54
Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals
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Cited by 3 •
2016
A two dimensional model material of discotic zirconium phosphate was developed. The inorganic crystal with lamellar structure was synthesized by hydrothermal, reflux, and microwave-assisted methods. On exfoliation with organic molecules, layered crystals can be converted to monolayers, and nematic liquid crystal phase was formed at sufficient concentration of monolayers.
12:04
Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments
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Cited by 34 •
2014
The preparation and exfoliation of CaCuSi4O10 and BaCuSi4O10 are described. Upon stirring in hot water, CaCuSi4O10 spontaneously exfoliates into monolayers, whereas BaCuSi4O10 requires ultrasonication in organic solvents. Near infrared (NIR) imaging illustrates the NIR emission properties of these materials, and aqueous dispersions of these nanomaterials are useful for solution processing.
10:41
Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol
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Cited by 38 •
2016
A protocol for the liquid exfoliation of layered materials to nanosheets, their size selection and size measurement by microscopic and spectroscopic techniques is presented.
10:18
Exfoliation and Analysis of Large-area, Air-Sensitive Two-Dimensional Materials
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Cited by 8 •
2019
A method for exfoliating large thin flakes of air sensitive two-dimensional materials and safely transporting them for analysis outside of a glovebox is presented.
07:55
An All-in-one Sample Holder for Macromolecular X-ray Crystallography with Minimal Background Scattering
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Cited by 4 •
2019
A novel sample holder for macromolecular X-ray crystallography along with a suitable handling protocol is presented. The system allows crystal growth, crystal soaking and in situ diffraction data collection at both, ambient and cryogenic temperature without the need of any crystal manipulation or mounting.
FAQs
Reducing a layered material to thin flakes or nanosheets can reveal thickness-dependent electrical, optical, thermal, and mechanical behavior. The resulting large surface area also changes how the material can interact with its surroundings. Engineers therefore compare samples across thicknesses to determine which small-scale properties are useful for characterization or device development.
The two approaches overcome weak forces between adjacent layers through different processing routes. Mechanical cleavage separates layers directly, while liquid-phase processing produces flakes within a liquid environment. These routes can lead to differences in sample size, thickness, and structural preservation, so the selected approach should match the requirements of the intended measurement or application.
Quality, lateral size, thickness, and structural preservation are central variables. Variations in these characteristics can change measured properties and affect whether results represent the parent material or a small-thickness effect. Controlling and documenting them is especially important when comparing exfoliated samples or translating material measurements into device performance.
A general workflow begins with a bulk layered material, applies mechanical cleavage or liquid-phase processing, and then examines the resulting flakes or nanosheets. Evaluation focuses on thickness, size, quality, and preservation of the parent structure. Those characteristics are then related to electrical, optical, thermal, or mechanical measurements and intended use.
They provide a practical way to investigate how material behavior changes as dimensions become very small. Engineers can use them to study two-dimensional materials and identify thickness-dependent responses that may be obscured in bulk specimens. This information supports comparisons between structure and performance before incorporating a material into an engineered system.
Their reduced dimensions and large surface areas support research on sensors, coatings, electronic devices, and energy technologies. In each case, performance depends on matching sample quality, size, thickness, and structural preservation to the design objective. Exfoliated samples therefore serve both as characterization specimens and as material platforms for engineering development.