Solar Energy Materials and Solar Cells, Vol.67, No.1-4, 83-88, 2001
Theoretical analysis of the effect of conduction band offset of window/CIS layers on performance of CIS solar cells using device simulation
One of the most important factors of CdS leading to high performance in Cu(In,Ga)Se-2 (CIGS) solar cells is appropriation of the conduction band offset of CdS/CIGS layers. However, it is not clearly explained. In this study, device modeling and simulation were conducted to explain the effect of conduction band offset of window/CIGS layers on performance of CIGS solar cells. As a result of calculation, excellent performance can be obtained when the conduction band of window layer positions higher by 0-0.4eV than that of CIGS. (C) 2001 Elsevier Science B.V. All rights reserved.