Printed Paper Speakers Created by pmTUC Provide Good Sound Quality

Electricity that grows on trees

Besides printed loudspeakers, pmTUC presents innovative application scenarios for printed solar cells. "Half a year ago, we introduced the world’s first 3PV technology--printed paper photovoltaics, says Hübler. At drupa, the Chemnitz researchers exhibit a solar tree with 50 printed solar leaves. Similar to an ordinary tree, the leaves that face the sun collect energy. They are connected with snap fasteners. Via a cable in the hollow tree trunk the solar electricity supplies a battery.