Setting the B0 recombination coefficient of each layer. If the material has n-layers you need to set B0 for each layer.
Format
$dirrecombine B_1 B_2 B_3 ... B_n
Example
$dirrecombine 2.00e-11 2.00e-11 2.00e-11 2.00e-11 2.00e-11
The $dirrecombine setting for 1D-DDCC in GUI interface
