Controlled defects in single-layer graphene pinpoint a critical 20 nm spacing where quantum interference traps electrons and ...

Perovskite solar cells have surged from laboratory curiosities to serious contenders against silicon in barely a decade, yet ...

Light can hit a lead halide perovskite crystal that is anything but pristine and still end up as useful electric current. That mismatch has bothered solar researchers for more than a decade. Silicon ...