Calculate the screening distance in a plasma or electrolyte.
System Parameters
K
m⁻³
Calculation Results
Enter temperature and density
About this calculator
Quick Reference
λ_DDebye Length
ε₀Vacuum Permittivity
k_BBoltzmann Constant
TAbsolute Temperature (K)
nElectron/Ion Density
eElementary Charge
Overview
In plasma physics and electrochemistry, the Debye length is a measure of a charge carrier's net electrostatic effect in a solution and how far those effects persist. Outside the Debye length, the charge is effectively screened.
💡
Pro Tips
The formula assumes a single species of mobile charge carriers (usually electrons in plasma).
Higher temperatures increase the Debye length due to increased thermal motion.
Higher densities decrease the Debye length as more charges are available for screening.
!
Fun Facts
"The concept is named after Peter Debye, who won the Nobel Prize in Chemistry in 1936."
"Debye screening is why cellular fluids and plasmas remain quasi-neutral on larger scales."
