Nanolithography

Nanolayer coatings Nanolithography Nanomaterials Nanometer composites Nanoparticles Nanostrip Nanotechnology Nantokite [14708-85-1] Nantokite [14708-8517] NaOH... 

Fortunately, in parallel to the CNT story, the field of nanotechnology, including nanolithography, have made tremendous strides. By using an STM,... 

An SWCNT a few microns long with electrical contacts deposited via nanolithography techniques is an ideal system to study single-molecule transistor effects, in which an electrode (Vga/e) close to the conducting CNT is used to modulate the conductance [33]. 

The most important nanomaterial synthesis methods include nanolithography techniques, template-directed syntheses, vapor-phase methods, vapor-liquid-solid (VLS) methods, solution-liquid-solid (SLS) approaches, sol-gel processes, micelle, vapor deposition, solvothermal methods, and pyrolysis methods [1, 2]. For many of these procedures, the control of size and shape, the flexibility in the materials that can be synthesized, and the potential for scaling up, are the main limitations. In general, the understanding of the growth mechanism of any as-... 

Stokes, N., McDonagh, A. and Cortie, M.B. (2007) Application of nanolithography to the preparation of nanoscale gold structures. Gold Bulletin, 40, 310-320. 

Figure 13.2 Fluorescence micrographs of DOPC multi-layer patterns fabricated by dip-pen nanolithography, (a) An array of 25 contiguous line features. Red color is from doped rhodamine-labeled lipid, (b) A higher magnification of the region highlighted by the white square in (a), (c) Two-component patterns containing two different dyes. Green color is from doped NBD-labeled lipid.

Figure 25. Formation of an artificial structure of metal nanoparticles by dip pen nanolithography using an AFM (a), tip to transport functionalized thiol molecules onto a gold surface (b) and to trap the nanoparticles (c).

Munz, M., Cappella, B., Sturm, H., Geuss, M. and Schulz, E. Materials Contrasts and Nanolithography Techniques in Scanning Force Microscopy (SFM) and their Application to Polymers and Polymer Composites. Vol. 164, pp. 87-210. 

Fig. 2 A quantum dot transport structure, consisting of a source, a drain, and a gate, with gold nanoparticles surrounded by DNA (the bright white dots). The transport through these structures can be fitted well to a simple Coulomb blockade limit description. From S.-W. Chung et al. Top-Down Meets Bottom-Up Dip-Pen Nanolithography and DNA-Directed Assembly of Nanoscale Electrical Circuits Small (2005) 1, 64-69. Copyright Wiley-VCH Verlag GmbH Co. KGaA. Reproduced with permission...

The potential applications of inorganic nanotubes as tips for scanning probe microscopy for the study of soft tissue rough surfaces and for nanolithography is further discussed in this chapter (Section VI). Most importantly, these kinds of nanoparticles exhibit interesting tribological properties, which are briefly discussed. 

Another important field where inorganic nanotubes can be useful is as tips in scanning probe microscopy (16). Here, applications in the inspection of microelectronics circuitry have been demonstrated and potential applications in nanolithography are being contemplated. A comparison between a WS2 nanotube tip and a microfabricated Si tip indicates that while the microfabricated conical-shaped Si tip is unable to probe the bottom of deep and narrow grooves, the slender and inert... 

Keywords Block copolymers Etching Nanolithography Nanoporous Self-assembly... 

A seminal contribution by Mansky et al. on the preparation of oriented thin films of PS-PBD block copolymers that were then subjected to ozonolysis degradation conditions to give porous thin films for use as nanolithography... 

Eight months after submission of the first manuscript describing successful preparation of nanolithography masks from PS-PMMA block copolymers,... 

Fig. 8 Schematic representation of block copolymer nanolithography process, a Schematic cross-sectional view of a nanolithography template consisting of a uniform mono-layer of PB spherical microdomains on silicon nitride. PB wets the air and substrate interfaces, b Schematic of the processing flow when an ozonated copolymer film is used as a positive resist, which produces holes in silicon nitride, c Schematic of the processing flow when an osmium-stained copolymer film is used as a negative resist, which produces dots in silicon nitride, (taken from [44])...

For direct patterning on the nanometer scale, scanning probe microscopy (SPM) based techniques such as dip-pen-nanolithography (DPN), [112-114] nanograftingf, nanoshaving or scanning tunneling microscopy (STM) based techniques such as electron induced diffusion or evaporation have recently been developed (Fig. 9.14) [115, 116]. The SPM based methods, allows the deposition of as-sembhes into restricted areas with 15 nm linewidths and 5 nm spatial resolution. Current capabihties and future applications of DPN are discussed in Ref. [117]. 

Fig. 9.23 SPM micrographs of PS brushes generated by SIP on a chemical nanolithography substrate prepared by a stencil mask with a slit pattern. The height profiles below the images show an average profile along the...

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