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Posts Tagged "solar cell"

Observations

Solar-Powered Ford Aims to Drive Off-Grid

Ford,solar,CES,auto

Solar-powered cars have been little more than a novelty to date, experimental vehicles resembling photovoltaic-laden surfboards designed mostly for racing across deserts. Expensive batteries, relatively inefficient PV energy conversion and the lack of intense sunlight in many places have made sun-powered passenger vehicles impractical. Ford is looking to change that with a version of its [...]

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Observations

Charge of the light brigade: How quantum dots may improve solar cells

Photovoltaic cells remain woefully inefficient at converting sunlight into electricity. Although layered cells composed of various elements can convert more than 40 percent of (lens-concentrated) sunlight into electricity, more simple semiconducting materials such as silicon hover around 20 percent when mass-produced. And, at best, such cells could convert only a third of incoming sunlight due [...]

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Observations

Sunshine is free, so can photovoltaics be cheap?

Here’s how to make a solar cell from silicon: take one solid block of doped silicon, saw it into thin wafers, layer said semiconductors beneath a panel of transparent glass, connect them to a metal electrode that can channel away the electrons knocked loose by incoming photons and turn it into a photovoltaic device. That [...]

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