Electrical activity of grain boundaries in CdTe solar cell

Electrical activity of grain boundaries in CdTe solar cell
Data courtesy of Dr. J. Poplawsky, Oak Ridge National Laboratory

(a) Quantitative EBIC contrast map from the cross section of a CdTe/CdS solar cell after CdCl2 and Cu treatment; the intensity scale shows the EBIC contrast number (EBIC current normalized by the electron beam current).