RE: Nanoco 2D Materials Ltd3 May 2018 21:39
amerloque, all of these nanomaterials are really three dimensional in that they all have width, length and depth (even if the depth is one atom). I was trying to point out a flaw in NigWit's distinction between 1 dimensional and 2 dimensional materials.
Zero and one dimensional materials obviously cannot refer to the number of actual physical dimensions, but instead describe the number of dimensions in which electrons are constrained: hence a quantum dot, which constrains electrons in all directions, can be called zero-dimensional. A quantum well constrains electrons to movement in one dimension. When it comes to 2D materials however, the terminology is not consistent, the two dimensions referred to are actual spatial characteristics rather than constraints, the one-atom-thick third dimension is ignored for convenience because it is not variable.
Before Nano 2D, Nanoco, as far as I am aware, have never quantified materials in terms of their dimensions or dimensional constraints: all we know is that they have made Quantum dots and other unspecified nanomaterials. Clearly, the QDs are not 2D materials, but the others are unknown.