21.2 percent world record efficiency for industrial PERC silicon solar cell

EMMERTHAL, GERMANY: The Institute for Solar Energy Research Hamelin (ISFH) increased the conversion efficiency of industrial silicon solar cells with screen-printed metal contacts from today's typical 17.5 percent to 19.5 percent to a record value of 21.2 percent, as confirmed by an independent measurement of the Fraunhofer ISE CalLab.

Now, 21.2 percent is the highest efficiency reported so far worldwide for industry typical silicon solar cells with screen-printed metal contacts.

"A 21.2 percent conversion efficiency for a PERC cell in industry scale is a true breakthrough. With the excellent processing knowledge and the expertise for solar cells of the ISFH, the front-side silver-pastes of Heraeus could unfold their peak performance," states Carsten Mohr, VP, Global Sales of the Heraeus Photovoltaics Business Unit.