Question

A quantum dot is a nanomaterial of dimension?

• A. One
• B. Four
• C. Two
• D. Zero

Hint:

Quantum dots are 0-dimensional materials, meaning they are confined in all three spatial dimensions, resulting in unique quantum properties such as discrete energy levels.

Answer 1

The Correct Option is D

A quantum dot is a nanomaterial that is confined in all three spatial dimensions (i.e., it is a 0-dimensional structure). These materials exhibit unique electronic properties due to their small size and quantum effects that arise when the particle size is on the order of the electron's de Broglie wavelength. The confinement in all three dimensions gives quantum dots their distinct behavior, unlike other nanomaterials like nanowires or nanotubes, which are confined in only one or two dimensions.
Thus, a quantum dot is considered to be of zero dimension.