We develop a man-made leaf from a stable all-oxide-based photoelectrochemical tandem device that can sustainably produce fuels from sunlight and water without requiring any external electrical power input.
Strongly polarized light emission is achieved in perovskite LEDs by synthesising strongly-confined nanoplatelets with large exciton fine-structure splitting, and self-assembling these into superlattices.
We demonstrate NaBiS2 to be capable of absorbing as much light as silicon, but with 10,000 times lower thickness. This is enabled by cation disorder, which also leads to unusual effects on charge-carrier kinetics.
The core limitation of using halide perovskites commercially is their composition of neurotoxic lead that can easily be released into water due to the high solubility of the perovskite compound. This editorial discusses the use of supramolecular complexes to prevent lead leaching from broken perovskite modules.
