Some literature describes nanorods as 1D and some other 2D? Can anyone explain?
Nanorods are considered 1D dimensional materials.
One easy way to decide the dimension is to think how many sides of the structure are bigger than the others.
The dimension of nanomaterials can be summarizes as:
- 0D = espherical nanoparticles (all dimensions are the same and in the in the nanometric behavior)
- 1D = nanorods, etc (1 dimension bigger than the other 2)
- 2D = nanosheets, etc (2 dimensions bigger than the other 1)
- 3D = other nanomaterials
Nanorods are considered 1D dimensional materials.
One easy way to decide the dimension is to think how many sides of the structure are bigger than the others.
The dimension of nanomaterials can be summarizes as:
- 0D = espherical nanoparticles (all dimensions are the same and in the in the nanometric behavior)
- 1D = nanorods, etc (1 dimension bigger than the other 2)
- 2D = nanosheets, etc (2 dimensions bigger than the other 1)
- 3D = other nanomaterials
It maybe seen also that because there is a 2D quantum confinement, it is a 3D-2D=1D object. Or reversaly, a 1D object means a 2D confiment....
By exemple a quantum whell in a semi conductor provide 1D quantum confinement and is a 2D object ...
Nanorods may be referred to as 1D if they have an extremely high aspect ratio (length or rod divided by the circumference). If the aspect ratio is smaller, some people may refer to them as 2D.
If the aspect ratio of 1D nanostructure was less than 10, the nanostructure called nanorod and if it is more than 10, the nanostructure called nanowire. The determined structure type depending on the dimensions size, if the structure has 2 dimension in nanosize called 1D nanostructure, and if the structure has just 1 dimension in nanosize, the nanostructure type wil be 2D.
nano rods structures can be better understood (1).by 1D if the structures are explained along any of the axis.(2).by 2D if the structures are explained by taking two coordinates together.
It depends on the nanorod size, if the nanorod has a great diameter and the length is so long may be is not that nano. I published an estudy about 1D-alumina nanorods at Appl. Catal. A: Gen 472 (2014) 1-10, you can also find there some literature about it.
Talking about dimensions of the materials means mentions the 3D in space. When 2 any D become much bigger than the rest, the material become 1D. It does not mater the "rod" the "nanowire" if the above condition is satisfied, the material become one D.
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