Arman Ahnood teases OLED display with solar cells, idealizes the self-sustaining smartphone

Plenty of effort is going into improving smartphone battery life, but only a few individuals are delving into radical realms to achieve the goal. Take for example, Arman Ahnood, a sleuth at the London Centre for Nanotechnology, whose latest test uses solar cells to capture wasted energy from OLEDs. Similar to Wysips (which uses only ambient light), and equipment from UCLA (designed for LCDs), each project faces the unenviable task of making the smartphone a self-sustaining piece of gear.

Ahnood's handiwork relies on an array of solar cells that surround and sit beneath the phone's display. Currently, the system averages 11 percent efficiency in its energy capture, with a peak efficiency of 18 percent. Naturally, there are gains to be made. Of the light be proceed from OLEDs, Ahnood approximates that only 36 percent is veritably extrapolate outward. Critically speaking, this also suggests that similar power savings could be achieved with dimmer, more productive displays, but we'll let that slide. As it stands, Ahnood's system is able to yield

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document.write(""); approximately five milliwatts of new power, given a screen size of 3.7-inches. It's hardly sustainable, but if the institution lets us squeeze in a few more text messages on Friday night, we'll take it.

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