Researchers Develop Low-cost, Efficient LED Lighting

Posted: Jan 17 2017, 2:05am CST | by , in News | Latest Science News

 
Researchers Develop low-cost, efficient LED Lighting
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At a time when existing LEDs are helping to keep electricity bills low, a group of scientists has developed a more efficient and low-cost alternative to the materials used in traditional LEDs.

Princeton engineering researchers refined the manufacturing of light sources made with crystalline substances known as perovskites that provide more efficiency, lower-cost and long life to the new LEDs.

In this technique, nanoscale perovskite particles self-assemble to produce more efficient, stable and durable perovskite-based LEDs and the working was published in journal Nature Photonics.

"Our new technique allows these nanoparticles to self-assemble to create ultra-fine grained films, an advance in fabrication that makes perovskite LEDs look more like a viable alternative to existing technologies," said lead researcher Barry Rand.

Rand's team and others researchers are exploring perovskites as a potential lower-cost alternative to gallium nitride (GaN) and other materials used in LED manufacturing. Lower-cost LEDs would speed the acceptance of the bulbs, reducing energy use and environmental impacts.

Perovskite is a mineral originally discovered in the mid-1800s in Russia and named in honor of the Russian mineralogist Lev Perovski.

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