Constants

$h$	...	PLANCK's constant	$6.6260755 \times 10^{-34}$Js
$\hbar$	...	Reduced PLANCK's constant	$h / (2 \pi)$
${\mathrm{k_B}}$	...	BOLTZMANN's constant	$1.380662 \times 10^{-23}$JK$^{-1}$
$\ensuremath {\mathrm{q}}$	...	Elementary charge	$1.6021892 \times 10^{-19}$As
$\varepsilon_\mathrm{si}$	...	Relative permittivity of Si	11.7
$\varepsilon_\mathrm{0}$	...	Vacuum permittivity	$8.85 \times 10^{-12}$ CV$^{-1}$m$^{-1}$
$\ensuremath{\mathrm{m}}_0$	...	Electron rest mass	$9.1093897 \times 10^{-31}$kg
$\imath$	...	$\sqrt{-1}$