ScienceDaily: Energy Technology News |
| Engineers create tandem polymer solar cells that set record for energy-conversion Posted: 13 Feb 2012 10:37 AM PST Researchers in California report that they have significantly enhanced polymer solar cells' performance by building a device with a new "tandem" structure that combines multiple cells with different absorption bands. The device had a certified power-conversion efficiency of 8.62 percent and set a world record in July 2011. After the researchers incorporated a new infrared-absorbing polymer material into the device, the device's architecture proved to be widely applicable and the power-conversion efficiency jumped to 10.6 percent -- a new record -- as certified by the U.S. Department of Energy's National Renewable Energy Laboratory.  |
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