Engineered hybrid crystal opens new frontiers for high-efficiency lighting

[OKIsItJustMe]

http://news.engineering.utoronto.ca/engineered-hybrid-crystal/

[font face=Serif]July 15, 2015 | Marit Mitchell
[font size=5]Engineered hybrid crystal opens new frontiers for high-efficiency lighting[/font]

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The team designed a way to embed strongly luminescent nanoparticles called colloidal quantum dots (the chocolate chips) into perovskite (the oatmeal cookie). Perovskites are a family of materials that can be easily manufactured from solution, and that allow electrons to move swiftly through them with minimal loss or capture by defects.

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The result is a black crystal that relies on the perovskite matrix to ‘funnel’ electrons into the quantum dots, which are extremely efficient at converting electricity to light. Hyper-efficient LED technologies could enable applications from the visible-light LED bulbs in every home, to new displays, to gesture recognition using near-infrared wavelengths.

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The resulting heterogeneous material is the basis for a new family of highly energy-efficient near-infrared LEDs. Infrared LEDs can be harnessed for improved night-vision technology, to better biomedical imaging, to high-speed telecommunications.

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“We’re going to build the LED device and try to beat the record power efficiency reported in the literature,” says Gong.

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http://www.nature.com/nature/journal/v523/n7560/full/nature14563.html

[Warpy]

1. I have one hard to reach incandescent bulb that's been lightly used for 18 years

but is still going strong. I'll be replacing it with a small LED, I think, because that's what will fit in the fixture.

That's the problem, they still aren't making them compact enough to fit old fixtures.

However, I changed over to CFLs 18 years ago and am slowly converting over to LEDs. Happiness in old age is never having to climb a ladder to change a damned light bulb.