Chinese scientists achieved reversible red-green photoluminescence switching in Mn-based metal halides by replacing free Cl⁻ with Br⁻. The responsive property stems from weakened hydrogen ...

Defect-filled lead-halide perovskites rival silicon solar cells because domain walls inside the material separate and guide charges. Researchers visualized these charge-transport networks using a ...

Light can hit a lead halide perovskite crystal that is anything but pristine and still end up as useful electric current.

Perovskite solar cells have surged from laboratory curiosities to serious contenders against silicon in barely a decade, yet the physics behind their remarkable energy harvesting has remained partly ...

Despite being riddled with impurities and defects, solution-processed lead-halide perovskites are surprisingly efficient at converting solar energy into electricity. Their efficiency is approaching ...