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Nanoprocessing of layered crystalline materials by atomic force microscopy.

Miyake S, Wang M - Nanoscale Res Lett (2015)

Bottom Line: By taking advantage of the mechanical anisotropy of crystalline materials, processing at a single-layer level can be realized for layered crystalline materials with periodically weak bonds.Moreover, it is easy to image the atoms on the basal plane, where the processed shape can be observed on the atomic level.It also summarizes recent AFM results obtained by our research group regarding the atomic-scale mechanical processing of layered materials including mica, graphite, MoS2, and highly oriented pyrolytic graphite.

View Article: PubMed Central - PubMed

Affiliation: Department of Innovative System Engineering, Nippon Institute of Technology, Saitama, Japan.

ABSTRACT
By taking advantage of the mechanical anisotropy of crystalline materials, processing at a single-layer level can be realized for layered crystalline materials with periodically weak bonds. Mica (muscovite), graphite, molybdenum disulfide (MoS2), and boron nitride have layered structures, and there is little interaction between the cleavage planes existing in the basal planes of these materials. Moreover, it is easy to image the atoms on the basal plane, where the processed shape can be observed on the atomic level. This study reviews research evaluating the nanometer-scale wear and friction as well as the nanometer-scale mechanical processing of muscovite using atomic force microscopy (AFM). It also summarizes recent AFM results obtained by our research group regarding the atomic-scale mechanical processing of layered materials including mica, graphite, MoS2, and highly oriented pyrolytic graphite.

No MeSH data available.


Related in: MedlinePlus

Cross groove processed by a DLC-coated tip (load: 1,600 nN; line period: 200 nm) (a, b, c, d).
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Fig20: Cross groove processed by a DLC-coated tip (load: 1,600 nN; line period: 200 nm) (a, b, c, d).

Mentions: An example of MoS2-processed lattice grooves with 200-nm line intervals is shown in Figure 20. The processing depth of the lines was approximately 0.6 nm. As a result, nearly 100-nm square plates were formed in a 1 × 1 μm2 area supported by van der Waals forces. The shapes of the processed grooves in MoS2 were not as distinct as those in mica, and visible processing debris was not removed because of the tip scanning performed to measure the shapes. The continuous processing of MoS2 in stress-concentrated areas is problematic because its basal plane strength is higher than that of mica. Therefore, the accurate nanometer-scale cutting processing of MoS2 is difficult.Figure 20


Nanoprocessing of layered crystalline materials by atomic force microscopy.

Miyake S, Wang M - Nanoscale Res Lett (2015)

Cross groove processed by a DLC-coated tip (load: 1,600 nN; line period: 200 nm) (a, b, c, d).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4385287&req=5

Fig20: Cross groove processed by a DLC-coated tip (load: 1,600 nN; line period: 200 nm) (a, b, c, d).
Mentions: An example of MoS2-processed lattice grooves with 200-nm line intervals is shown in Figure 20. The processing depth of the lines was approximately 0.6 nm. As a result, nearly 100-nm square plates were formed in a 1 × 1 μm2 area supported by van der Waals forces. The shapes of the processed grooves in MoS2 were not as distinct as those in mica, and visible processing debris was not removed because of the tip scanning performed to measure the shapes. The continuous processing of MoS2 in stress-concentrated areas is problematic because its basal plane strength is higher than that of mica. Therefore, the accurate nanometer-scale cutting processing of MoS2 is difficult.Figure 20

Bottom Line: By taking advantage of the mechanical anisotropy of crystalline materials, processing at a single-layer level can be realized for layered crystalline materials with periodically weak bonds.Moreover, it is easy to image the atoms on the basal plane, where the processed shape can be observed on the atomic level.It also summarizes recent AFM results obtained by our research group regarding the atomic-scale mechanical processing of layered materials including mica, graphite, MoS2, and highly oriented pyrolytic graphite.

View Article: PubMed Central - PubMed

Affiliation: Department of Innovative System Engineering, Nippon Institute of Technology, Saitama, Japan.

ABSTRACT
By taking advantage of the mechanical anisotropy of crystalline materials, processing at a single-layer level can be realized for layered crystalline materials with periodically weak bonds. Mica (muscovite), graphite, molybdenum disulfide (MoS2), and boron nitride have layered structures, and there is little interaction between the cleavage planes existing in the basal planes of these materials. Moreover, it is easy to image the atoms on the basal plane, where the processed shape can be observed on the atomic level. This study reviews research evaluating the nanometer-scale wear and friction as well as the nanometer-scale mechanical processing of muscovite using atomic force microscopy (AFM). It also summarizes recent AFM results obtained by our research group regarding the atomic-scale mechanical processing of layered materials including mica, graphite, MoS2, and highly oriented pyrolytic graphite.

No MeSH data available.


Related in: MedlinePlus