Read our Smartphones in the future could be powered by invisible solar panels built into the device’s screen. Adding the ability to charge from the Sun, by using the glass in the screen, has long been a dream of phone users. But the materials to make it practically possible are lacking, making such technology difficult to develop.
The Kyocera phone could set a huge precedent for the future of solar-powered tech. If Sunpartner's transparent photovoltaic material delivers, it's likely to be snapped up by many more smartphone manufacturers than just Alcatel and Kyocera. And there are plenty of similar materials being pioneered in the photovoltaic space.
Kyocera says it expects to bring its solar-powered smartphone to market soon, possibly in time for the next Mobile World Congress in February 2017. The company says solar charging will not add much in the way of cost, so the phones are likely to have a price tag that is acceptable to users and the carriers that sell the handsets.
But the materials to make it practically possible are lacking, making such technology difficult to develop. This is because the materials necessary to make the solar cell opaque are the semiconductor layers, which are responsible for capturing light and converting it into an electrical current that could power a phone.
Despite all the technical progress, solar-powered phones face another limitation that has more to do with user behavior—specifically how long people have their phones outside of their pockets, backpacks or purses and in the light, Bulović says. Making solar-charged phones more practical “would require a change in habits,” he adds.
It's pretty clear where solar-powered phones will be launched first: places without ubiquitous power supplies (and brighter days) will be the proving ground for such technology, as long as the manufacturing costs continue to fall.
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Solar Cells in Smartphone Screens
To extend the time between charges, Nathan''s group built a prototype device that converts ambient light into electricity using an array of solar cells made of thin-film hydrogenated amorphous silicon that''s designed to sit within the phone''s screen. The photovoltaic (PV) cell takes advantage of the smartphone display''s large footprint.
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Let''s talk about the standout feature of solar-powered smartphones – their solar cells. These specialized cells are designed to capture sunlight efficiently, transforming it into usable energy for your phone. Their efficiency has improved significantly in recent years, making solar-powered charging a viable option even in less sunny regions.
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