Solar Cell World Record

Fight disinformation: Sign up for the free Mother Jones Daily newsletter and follow the news that matters.


275px-Photoelectric_effect.svg.png A new world record has been set by a solar cell that converts 40.8 percent of light into electricity. The proud parents are scientists at the U.S. Department of Energy’s National Renewable Energy Lab.

The 40.8 percent efficiency was measured under concentrated light of 326 suns. One sun is the amount of light that hits Earth on a sunny day. The new cell will work well for space satellites. Also for land-based arrays that focus sunlight onto solar cells with lenses or mirrors.

You know, the kind we need to be building everywhere. Marshall Plan for Earth, and all that.

The new cell is grown on a gallium arsenide wafer. Then flipped over and the wafer removed. The result is an extremely thin and light solar cell with better performance and cost. Bring it on.

Julia Whitty is Mother Jones’ environmental correspondent, lecturer, and 2008 winner of the Kiriyama Prize and the John Burroughs Medal Award.

FOLLOW THE MONEY

Corporations and billionaires don’t fund journalism like ours that exists to shake things up. Instead, support from readers allows Mother Jones to call it like it is without fear, favor, or false equivalence.

And right now, a longtime friend of Mother Jones has pledged an incredibly generous gift to inspire—and double—giving from online readers. That's huge! Because you can see that our fall fundraising drive is well behind the $325,000 we need to raise. So if you agree that in-depth, fiercely independent journalism matters right now, please support our work and help us raise the money it takes to keep Mother Jones charging hard. Your gift, and all online donations up to $94,000 total, will be matched and go twice as far—but only until the November 9 deadline.

$400,000 to go: Please help us pick up the pace!

payment methods

FOLLOW THE MONEY

Corporations and billionaires don’t fund journalism like ours that exists to shake things up. Instead, support from readers allows Mother Jones to call it like it is without fear, favor, or false equivalence.

And right now, a longtime friend of Mother Jones has pledged an incredibly generous gift to inspire—and double—giving from online readers. That's huge! Because you can see that our fall fundraising drive is well behind the $325,000 we need to raise. So if you agree that in-depth, fiercely independent journalism matters right now, please support our work and help us raise the money it takes to keep Mother Jones charging hard. Your gift, and all online donations up $94,000 total, will be matched and go twice as far—but only until the November 9 deadline.

$400,000 to go: Please help us pick up the pace!

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate