I am planning to deposit Mo and Co doped CdTe nanowire by thermal evaporation method. What should be the temperature to deposite CdTe nanowire ? and for nanorod and nanoribbon deposition what should be the temperature ?
All these structures are nano structures. There are only difference in their microstructures.
1. Nanorods
In nanotechnology, nanorods are one morphology of nanoscale objects. Each of their dimensions range from 1–100 nm. They may be synthesized from metals or semiconducting materials. Standard aspect ratios (length divided by width) are 3-5. Nanorods are produced by direct chemical synthesis. A combination of ligandsact as shape control agents and bond to different facets of the nanorod with different strengths. This allows different faces of the nanorod to grow at different rates, producing an elongated object.
2. Nanotubes
Generally nanotubes are mainly made of carbon
Carbon nanotubes (CNTs) are allotropes of carbon with a cylindrical nanostructure. These cylindrical carbon molecules have unusual properties, which are valuable for nanotechnology, electronics, optics and other fields of materials science and technology. Owing to the material's exceptional strength and stiffness, nanotubes have been constructed with length-to-diameter ratio of up to 132,000,000:1, significantly larger than for any other material.
3. Nanowire
A nanowire is a nanostructure, with the diameter of the order of a nanometer (10−9meters). It can also be defined as the ratio of the length to width being greater than 1000. Alternatively, nanowires can be defined as structures that have a thickness or diameter constrained to tens of nanometers or less and an unconstrained length. At these scales, quantum mechanical effects are important — which coined the term "quantum wires". Many different types of nanowires exist, including superconducting (e.g. YBCO[1]), metallic (e.g. Ni, Pt, Au
4. Nanoribbons
(GNRs, also called nano-graphene ribbons or nano-graphite ribbons) are strips of graphene with width less than 50 nm.
Nanowires and Nanorods : One-dimensional structures have been called in different ways: nanowires, nanorod, fibers of fibrils, whiskers, etc. The common characteristic of these structures is that all they have a nanometer size in one of the dimensions, which produces quantum confinement in the material and changes its properties.
As said by others above, the fundamental difference is in ASPECT RATIO. All are 1-D materials, which means they have quantum confinement effects (QCEs) or Quasi-QCEs in at least 2 dimensions.
You can simply evaporate CdTe in tube furnace using CVD at temperature above 400 degree Celsius.
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