First Fully Transparent Solar Cell

by | Jun 22, 2016 | Energy | 0 comments

This New invention could make every window in your house a power source.

A Michigan State University research team has finally created a truly transparent solar panel — a breakthrough that could soon usher in a world where windows, panes of glass, and even entire buildings could be used to generate solar energy. Until now, solar cells of this kind have been only partially transparent and usually a bit tinted, but these new ones are so clear that they’re practically indistinguishable from a normal pane of glass.

Previous claims toward transparent solar panels have been misleading, since the very nature of transparent materials means that light must pass through them. Transparent photovoltaic cells are virtually impossible, in fact, because solar panels generate energy by converting absorbed photons into electrons. For a material to be fully transparent, light would have to travel uninhibited to the eye which means those photons would have to pass through the material completely (without being absorbed to generate solar power).

Related: Here’s how many solar panels we’d need to provide power for the entire planet

So, to achieve a truly transparent solar cell, the Michigan State team created this thing called a transparent luminescent solar concentrator (TLSC), which employs organic salts to absorb wavelengths of light that are already invisible to the human eye. Steering clear of the fundamental challenges of creating a transparent photovoltaic cell allowed the researchers to harness the power of infrared and ultraviolet light.

Read more: Digital Trends

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