Defect properties

The properties of a defect and its impact on the material quality are of great importance for the efficiency of solar cells.

Defect properties

The properties of a defect and its impact on the material quality can be described by three main parameters:

  • defect concentration NT

  • capture cross sections for electrons and holes σn, σp

  • activation energy ET

All this properties are part of the simulation models we use and aside from the defect concentration can be measured with the temperature dependent method MD-PICTS.

Fig. 1: Energy scheme of a defect and its important parameters