Question

Which of the following are called artificial atoms?

• A. Electrons
• B. Molecules
• C. Quantum dots
• D. H-atoms

Hint:

Quantum dots are extremely versatile nanomaterials because of quantum confinement and the discrete energy levels that occur as a result of quantum confinement. They can also be manufactured in different sizes, which allows for precise control of their electronic and optical properties, which is a boon for scientists.

Answer 1

The Correct Option is C

Quantum dots are nanoscale semiconductor particles that exhibit discrete energy levels due to quantum confinement. These properties mimic the behavior of individual atoms, earning them the nickname “artificial atoms”. Features include:
• Size-dependent electronic and optical properties.
• Applications in imaging, quantum computing, and photovoltaics.
• Ability to emit tunable fluorescence based on particle size.
This distinct behavior is why they are likened to atoms in functionality and versatility.