Skip to Content

Developing Efficient Solar Concentrators

A new way to concentrate sunlight could make solar power competitive with fossil fuels.
August 19, 2008
Next, various inks are mixed together and poured onto a 10-centimeter glass sheet perched on a spin-­coating machine. This is done in a sealed box, to protect the researchers from inhaling the solvent.
When the glass is spun at 2,000 revolutions per minute, the ink spreads evenly and the solvent evaporates. The concentrator is complete and ready to be connected to solar cells.
Solar cells in the form of thin strips are mounted inside a frame. The cells line up with the edges of the solar concentrator and convert escaping light into electricity. In this prototype, a larger solar cell underneath captures red and infrared light that passes through the glass.
Artificial sunlight illuminates a solar concentrator attached to a single thin solar cell for testing.

Keep Reading

Most Popular

Here’s how a Twitter engineer says it will break in the coming weeks

One insider says the company’s current staffing isn’t able to sustain the platform.

Technology that lets us “speak” to our dead relatives has arrived. Are we ready?

Digital clones of the people we love could forever change how we grieve.

How to befriend a crow

I watched a bunch of crows on TikTok and now I'm trying to connect with some local birds.

Starlink signals can be reverse-engineered to work like GPS—whether SpaceX likes it or not

Elon said no thanks to using his mega-constellation for navigation. Researchers went ahead anyway.

Stay connected

Illustration by Rose Wong

Get the latest updates from
MIT Technology Review

Discover special offers, top stories, upcoming events, and more.

Thank you for submitting your email!

Explore more newsletters

It looks like something went wrong.

We’re having trouble saving your preferences. Try refreshing this page and updating them one more time. If you continue to get this message, reach out to us at customer-service@technologyreview.com with a list of newsletters you’d like to receive.