DopingMVP
Doping concentration ↔ count
Convert between dopant concentration, a volume, and the total number of dopant atoms.
Inputs
Result
Enter values and calculate to see the result.
Interpretation
Fill any two of concentration, volume, and count; leave the third blank.
Formula
count = concentration × volume
Density × volume = total number.
Variables
| Symbol | Variable | Unit |
|---|---|---|
| count | Total dopant atoms | dimensionless |
| concentration | Dopant concentration | m⁻³ |
| volume | Volume considered | m³ |
Assumptions & validity
This tool assumes:
- Uniform concentration throughout the volume.
Worked example
concentration = 1×10¹⁶ cm⁻³, volume = 1 µL (= 1×10⁻⁹ m³).
count = 1×10²² m⁻³ × 1×10⁻⁹ m³ = 1×10¹³ atoms