Heat has always been something we thought we understood. From baking bread to running engines, the idea seemed simple: heat ...

Researchers at the Institute of Science Tokyo have developed a tunable spinel-type sulfide semiconductor that emits light from violet to orange and switches between n-type and p-type conduction—paving ...

Researchers in Tokyo have created a spinel sulphide LED material that can can be tuned to emit light at wavelengths between orange and blue, and has photovoltaic properties. Spinel is a type of cubic ...