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 ...

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 ...

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

α-FAPbI 3, a promising solar cell material with a cubic perovskite structure that is metastable at room temperature, can be stabilized by introducing a pseudo-halide ion like thiocyanate (SCN –) into ...

Scientists are unlocking the secrets of halide perovskites -- a material that's poised to reshape our future by bringing us closer to a new age of energy-efficient optoelectronics. Two physics ...