Core engineering plays a vital role in the construction of efficient non-fullerene acceptors. Here, we synthesized a molecule named QX, based on the core of quinoxaline, and by replacing the H atoms ...

(Reuters) -Sunnova Energy said on Sunday it had filed for Chapter 11 bankruptcy protection in the United States, as the residential solar panel installer buckled under the pressure of mounting ...

High-frequency wands emit an electric current that might reduce potential for acne-causing bacteria. Here are the best ones, per experts, editors, and reviews.

Outdoor solar lights operate on a simple principle: they use solar cells to convert sunlight into electricity, which is then stored in the lights’ batteries and used to illuminate your home at ...