A unit-less material property related to the amount of energy stored in a sample relative to a vacuum after a voltage is applied. Also known as the relative permittivity, εr.
Calculating the permittivity of a material requires multiplying its relative permittivity by the free space permittivity constant.
ε = εr × ε0, where ε0 = 8.854×10-12 (F/m).
Approximate Relative Permittivity Constants of Semiconductors: