ELECTROMETALLURGY has at last succeeded in producing metallic calcium in commercial quantities, and at what must be considered a relatively low price. Until within a few weeks ago this metal had ...

A team of scientists led by the Begum Rokeya University in Bangladesh designed a solar cell with an absorber based on inorganic calcium nitrogen iodide (Ca3NI3) perovskite.. The research group ...

WHILE carrying out investigations in a number of aqueous solutions of electrolytes, we have observed the interesting feature of a decrease of ultrasonic velocity with increase of concentration in ...

Iodide perovskites such as methylammonium lead iodide (CH3NH3PbI3) can convert sunlight to electricity. Researchers use a decades-old geometric 'tolerance factor' to propose new combinations of ...