When we add water the magnesium oxide dissolves to form a solution that turns red litmus paper blue, telling us it is alkaline also called a base. So this shows us that metal oxides are bases ...

Researchers in China have have fabricated an aluminum contact-based TOPCon solar cell based that achieved a power conversion ...

Rather than simply applying a single colour, Coenen explored various techniques that could enable the introduction of pattern to the aluminium oxide layer ... with a yellow base layer forming ...