The INTERFACE line

Syntax

  INTERFace  number parameters

Description

The INTERFACE line allows the specification of recombination velocities and fixed charges at previously defined interfaces. Interfaces are accessed by numbers which are either given in an external mesh generator (negative electrode number) or using SURFACE lines.

Parameters

  Number  =  integer

NUMBER selects a given interface by number.

parameters

  Qf         =  real       Fixed charge density (/cm**2)
  S.N        =  vector     Electron surface recombination velocity (cm/sec)
  S.P        =  vector     Hole surface recombination velocity (cm/sec)
  TRap.type  =  character  Trap types
  ETrap      =  vector     Trap energy levels = Et - Ei (eV)
  NTRap      =  vector     Trap densities (/cm**2)

Traps are specified as with bulk lifetimes for SRH recombination (see the MATERIAL line), except using surface recombination velocities (S.N, S.P) instead of lifetimes.

Examples

Define fixed charges and recombination velocities on interface number 1.

  INTERFACE  NUM=1 QF=1E10 S.N=1E4 S.P=1E4