Blue light-emitting diodes (LEDs) are needed for high-definition displays with wide colour range. Efficient, stable and colour-saturated blue LEDs containing emitters made of perovskites have now been ...

It’s been 21 years since Freddie Highmore’s Charlie Bucket found that Golden Ticket.

Since it was first published in 1964, Roald Dahl's Charlie and the Chocolate Factory has inspired various adaptations across ...