Doing More With Much, Much Less

Dean Sigler Uncategorized 1 Comment

This dictum from Paul MacCready that we can do a great deal more with far less material expenditure is well realized in a big way by researchers at the California Institute of Technology (Caltech) with their new type of solar cell. Using about two percent of the silicon semiconductor material normally required for crystalline cells, and achieving a high level of energy conversion, the new cells may also be relatively inexpensive to manufacture. As noted by Harry Atwater in Caltech’s press release, “These solar cells have, for the first time, surpassed the conventional light-trapping limit for absorbing materials…” Atwater is Howard Hughes Professor, professor of applied physics and materials science, and director of Caltech’s Resnick Institute, which according to the …