Nanofiber

---Mithlesh k.Bhagat,Pramod singh,Rakesh Dhull,Rajeev Ranjan

In this paper we are summarizing the past, present and future of fabrication of nanofibers and nanowires. Some of already explored applications of these are in electronic devices e.g. Field-effect transistors, sensors, detectors and light-emitting diodes etc. and many new are coming up. Semiconductor nanowires are one-dimensional structures, with unique electrical and optical properties e.g. Quantum confinement effects. Fabrication at nanoscale and at low temperature with lot of other constraints is a promising area of research.

The vapor liquid solid (VLS) process is a fundamental mechanism for the growth of nanowires. In this process a small size (5 -100 nm in diameter), high melting point metal (such as Gold and

Projection electron-beam lithography in particular, appears to be promising because (i) It relies on electron, whose usefulness generating masters with features well below 100 nm is inarguable, and (ii) It uses projection optics, which allows features in the replicas to be much smaller( ~ 4 times) then those on the mask.

Laser-supported, dipole-assisted self-assembly results in blue-light guiding nanostructures, namely single-crystalline nanofibers of hexaphenyl molecules. The nanofibers are up to 1 mm long, extremely well-aligned to each other. Their cross sections can be tuned to span the range from non-guiding to guiding single optical modes at = 425.5 nm.

Highly aligned and closely packed SiO2 nanowires bunches were synthesized in a high yield by using molten Ga as a catalyst and Si wafers as Si-source via a VLS process. The use of Ga provides opportunities for the development of low temper

Some topics in this essay:
SiO Si, Gold Iron, DhullRajeev Ranjan, DA- IICTGandhinagarIndia-382009, below 100 nm, vls process, nm using, 100 nm, low temperature, below 100, batch batch, thermal evaporation,