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Chlorine can lead to efficient and simple OLED designs

Researchers discovered that using chlorine can drastically reduce OLED device complexity and improve its efficiency. In fact in their tests, the efficiency more than doubled at very high brightness.

The idea is to add a one-atom thick sheet of chlorine on the ITO electrode used in OLEDs. This can make the electrode a more efficient electrical transport - and so there's no need for a 'transport' layer as used in current designs.

http://www.oled-info.com/chlorine-can-lead-efficient-and-simple-oled-designs
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