Classification of nanomaterials based on dimension
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1. Zero dimensional(0-D):These nanomaterials have Nano-dimensions in all the three directions. Metallic nanoparticles including gold and silver nanoparticles and semiconductor such as quantam dots are the perfect example of this kind of nanoparticles. Most of these nanoparticles are spherical in size and the diameter of these particles will be in the1-50 nm range. Cubes and polygons shapes are also found for this kind of nanomaterials.
2. One dimensional(1-D):In these nanostructures, one dimension of the nanostructure will be outside the nanometer range. These include nanowires, nanorods, and nanotubes. These materials are long (several micrometer in length), but with diameter of only a few nanometer. Nanowire and nanotubes of metals, oxides and other materials are few examples of this kind of materials
3. Two dimensional(2-D):In this type of nanomaterials, two dimensions are outside the nanometer range. These include different kind of Nano films such as coatings and thin-film-multilayers, nano sheets or nano-walls. The area of the nano films can be large (several square micrometer),but the thickness is always in nano scale range
4. Three Dimensional(3-D):All dimensions of these are outside the nano meter range. These include bulk materials composed of the individual blocks which are in the nanometer scale
2. One dimensional(1-D):In these nanostructures, one dimension of the nanostructure will be outside the nanometer range. These include nanowires, nanorods, and nanotubes. These materials are long (several micrometer in length), but with diameter of only a few nanometer. Nanowire and nanotubes of metals, oxides and other materials are few examples of this kind of materials
3. Two dimensional(2-D):In this type of nanomaterials, two dimensions are outside the nanometer range. These include different kind of Nano films such as coatings and thin-film-multilayers, nano sheets or nano-walls. The area of the nano films can be large (several square micrometer),but the thickness is always in nano scale range
4. Three Dimensional(3-D):All dimensions of these are outside the nano meter range. These include bulk materials composed of the individual blocks which are in the nanometer scale
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