Amorphous Silicon Research: Phase III Technical Progress Report, 1 August 1996 - 31 July 1997

This report describes the progress made by United Solar Systems Corp., during the third year of a research program to improve its understanding and capabilities for developing multijunction amorphous silicon alloy cells. Highlights of the work include investigating the effect of plasma chemistry and deuterated precursor gases on cell properties, optimizing component cells of the triple-junctionstructure, and developing stable triple-junction cells. Progress has been demonstrated in the performance of all the component cells, leading to the world-record achievement of stable 13% active-area efficiency using a triple-junction cell.;