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.
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.
We unravel the complex electron-phonon coupling in BiOI, showing single crystals to have long charge-carrier drift lengths. This enables these materials to be capable of detecting ultra-low dose rates of X-rays, which can give rise to safer medical imaging.
Halide perovskite photovoltaics have made tremendous progress after only a decade of research. This invited Future Energy piece discusses the challenges that need to be addressed to move this technology from lab to market. The invited article draws upon the discussions held at the 2020 Virtual MRS symposium Robert co-organised with colleagues.
