Putting solar cells on plastic creates some interesting possibilities, according to University of California chemists A. Paul Alivisatos, Wendy Huynh, and Janke Dittmer. "This opens up all sorts of new applications, like putting solar cells on clothing to power LEDs, radios, or small computer processors," says Dittmer. The team created a hybrid solar cell made from tiny rods dispersed in an organic polymer layer. The nanorods act like wires. When they absorb light, they generate electrons, which travel the length of the rod until collected by an aluminum electrode. The polymer layer is 200 nanometers thick—less than the width of a human hair—and is sandwiched in between the electrodes. The hybrid solar cell generates 0.7V. Unlike semiconductor-based photovoltaic devices, the plastic solar cells can be made without clean rooms and vacuum chambers. Visit www.berkeley.edu.
Most of the new 3D printers and 3D printing technologies in this crop are breaking some boundaries, whether it's build volume-per-dollar ratios, multimaterials printing techniques, or new materials types.
Independent science safety company Underwriters Laboratories is providing new guidance for manufacturers about how to follow the latest IEC standards for implementing safety features in programmable logic controllers.
Automakers are adding greater digital capabilities to their design and engineering activities to promote collaboration among staff and suppliers, input consumer feedback, shorten product development cycles, and meet evolving end-use needs.
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