Skip to Content

Light- Powered iPad Keyboard

June 19, 2012

This combination iPad case and keyboard from Logitech uses a photovoltaic technology called dye-sensitized solar cells, which are highly efficient at producing electricity from indoor light. The photovoltaic cells recharge an onboard battery that provides power to the keyboard—which is part of the case that protects the iPad. These cells are made by G24 Innovations in Cardiff, Wales, based on technology originally invented in 1991 by Michael Grätzel at the Swiss Federal Institute of Technology in Lausanne, Switzerland.

Product: Solar Keyboard Folio
Cost: $130
Availability: Now
Companies: Logitech

Keep Reading

Most Popular

This startup wants to copy you into an embryo for organ harvesting

With plans to create realistic synthetic embryos, grown in jars, Renewal Bio is on a journey to the horizon of science and ethics.

VR is as good as psychedelics at helping people reach transcendence

On key metrics, a VR experience elicited a response indistinguishable from subjects who took medium doses of LSD or magic mushrooms.

This nanoparticle could be the key to a universal covid vaccine

Ending the covid pandemic might well require a vaccine that protects against any new strains. Researchers may have found a strategy that will work.

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.