Top news stories of October 25, 2022

A strategy to fabricate kesterite solar cells with a 13% efficiency

Kesterite (Cu2ZnSnS4, CZTS) is a sulfide mineral with a unique lattice structure that can be considered as derived from chalcopyrite CuInSe2 (CIS) by substituting two atoms of In3+ in the chalcopyrite by one atom of Zn2+ and one atom of Sn4+. The elements included in this mineral and its derivatives Cu2ZnSn(S,Se)4 (CZTSSe) are less-toxic and abundant on Earth, which could be very advantageous for the development of more sustainable and low-cost technologies.

An optical fiber sensor-based mouthguard to operate devices by bite force

Conventional interfaces for computers and other electronics only allow humans to operate devices using their fingers. Recent technological advancements, however, have opened valuable opportunities for the development of alternative interfaces that use voice, eye blinks, facial movements, or other body movements.

One of the crowd or one of a kind? New artificial intelligence research indicates we're a bit of both

An Aston University computer scientist has used artificial intelligence (AI) to show that we are not as individual as we may like to think.

Molecular cage protects precious metals in catalytic converters

Sometimes, solutions to environmental problems can have environmentally unfriendly side effects. For example, while most gas-powered cars have a catalytic converter that transforms engine emission pollutants into less harmful gases, this comes with a tradeoff: Catalytic converters contain precious metals such as platinum and palladium.