Thin Solid Films, Vol.403-404, 405-409, 2002
The puzzle of Cu(In,Ga)Se-2 (CIGS) solar cells stability
CIGS [Cu(In,Ga)Se-2] solar cells have demonstrated both very high performance and exceptional insensitivity to radiation damage or impurity. Facts related to stability of CIGS cells are briefly reviewed before potential underlying reasons for this exceptional behavior are exposed. The role of the interactions between point defects is stressed and a mechanism by which the association of point defects may lead to healing of deep centers is proposed.