$usemunpfunc

Function for organic material. We usually assume the carrier mobility is depend on electrical field and follow Poole-Frenkel field dependent mobility equation.

Mobility follow this equation

$\mu ={\mu }_{0}exp(\beta \sqrt{E})$

Where　

• ${\mu }_0$ is the zero-field mobility
• $\beta$ is the factor of mobility increasing
• $E$ is the electric field.

Format

$usemunpfunc
1 μe βe μh βh

Parameter Explanation

${\mu }_n={\mu }_{0}exp(\beta \sqrt{E})$,  ${\mu }_p={\mu }_{0}exp(\beta \sqrt{E})$ 

• μe : electron zero-field mobility. $(c{m}^{2}e{V}^{-1}{s}^{-1})$
• βe : electron beta. $(e{V}^{-1/2})$
• μh : hole zero-field mobility. $(c{m}^{2}e{V}^{-1}{s}^{-1})$
• βh : hole beta. $(e{V}^{-1/2})$

$usemunpfunc
11 μe βe μh βh $v_{n,sat}$ $v_{p,sat}$

Parameter Explanation

• μe : electron zero-field mobility. $(c{m}^{2}e{V}^{-1}{s}^{-1})$
• βe : electron beta. $(e{V}^{-1/2})$
• μh : hole zero-field mobility. $(c{m}^{2}e{V}^{-1}{s}^{-1})$
• βh : hole beta. $(e{V}^{-1/2})$
• $v_{n,sat}$ saturate electron velocity (cm/s)
• $v_{p,sat}$ saturate hole velocity (cm/s)

 ${\mu }_{n,temp}={\mu }_{0}exp(\beta \sqrt{E})$,  ${\mu }_{p,temp}={\mu }_{0}exp(\beta \sqrt{E})$ 

 If ${\mu }_{n,temp}\times E>v_{n,sat},then{\mu }_n=\frac{v_{n,sat}}{E}$
 If ${\mu }_{p,temp}\times E>v_{p,sat},then{\mu }_p=\frac{v_{p,sat}}{E}$

The $usemunpfunc setting for 1D-DDCC in GUI interface

The parameters are modified in step 4.