No, phosphorus is too small to enter

the GaAs crystal lattice

No, Ga and As are already

dopants

Yes, phosphorus would be an n

dopant in this case

Yes, phosphorus would be a

p-dopant in this case

No, it's not Silicon

m². s^-2

m.s^-2

m². s^-1

m^-2. s^-2

10³ Ohm

10² Ohm

10⁵  Ohm

10^-3 Ohm

C’est la même chose

L'une est l'inverse de l'autre

A disorganized movement of

charges under the effect of an electric field

A random movement

of charge carriers in all directions

A movement of

electrons and holes in one given direction

Movement of

electrons and holes in two opposite directions

Non, ce n’est pas du silicium

Oui, l’azote serait un dopant

p dans ce cas

Non, Ga et As sont déjà des

dopants

Non, l’azote est plus gros que Ga et As et ne peut pas rentrer dans le semiconducteur

Oui, l’azote serait un dopant

n dans ce cas

0,14.10¹⁶ cm^-3

7,4.10¹⁶ cm^-3

0,14.10²⁰ m^-3

7,4.10¹⁰ cm^-3

The maximal length along the x axis of a semiconductor containing n₀ electrons 

The distance that electrons can do along the axis x, from an area containing n₀  holes

The diffusion length of the electrons along the axis x, from an area having an electron density n₀

The maximal length that electrons (of concentration n₀) can do along the x axis before being trapped by holes