Introduction

Nanostructures are structures with characteristic dimensions, at least in one dimension:

• 1 to 100 nm

• 100 to 500 nm

• Less than 1 micron

The nanoparticle is

• An object smaller than the wavelength of visible light

• A particle whose size in at least one dimension is between 1 and 100 nm

• A structure whose optical properties are determined only by its size

A quantum dot is:

• Semiconductor nanoparticle with fluorescence

• Nanoparticle from any material with a size less than 10 nm

• Semiconductor nanoparticle in which the movement of charge carriers is limited

What primarily determines the optical properties of nanoparticles with perovskite symmetry?

• Size

• Form

• Chemical composition

What determines the luminescent properties of nanodiamonds?

• Luminescent of diamond matrix itself

• Luminescent of color centers

• Luminescence of surface states of nanodiamond

A quantum nanoplate is

• a particle of semiconductor material with a size greater than 100 nm

• a plate of semiconductor material with a thickness of several lattice constants

• Dielectric plate with a thickness of several nm

Hybrid nanostructures are used in the creation

• solar cells and LEDs

• wear-resistant materials

• explosive materials

The bottom-up technique is

• Lithography

• Molecular Beam Epitaxy

• Etching

For the synthesis of luminescent nanodiamonds, the following method is used

• colloid synthesis

• molecular beam epitaxy

• chemical vapor deposition (CVD)

Why the properties of nanomaterials are different significantly compared to bulk materials?

• Increased relative surface area

• Increased lattice parameters

• Lower down the melting temperature