Robert D. J. Oliver

TL;DR: High-resilience positive-intrinsic-negative perovskite solar cells are demonstrated by incorporating a piperidinium-based ionic compound into the formamid inium-cesium lead-trihalide perovSKite absorber, and detailed degradation routes that contribute to the failure of aged cells are revealed.

TL;DR: In this article, the Fourier transform photocurrent spectroscopy (FTPS) was combined with detailed balance calculations to quantify the voltage loss resulting from halide segregation, thus providing a means to quantitatively quantify the impact of the low bandgap iodide-rich phases on performance.

TL;DR: In this paper, the authors combine simultaneous in situ photoluminescence and X-ray diffraction measurements to demonstrate clear differences in compositional and optoelectronic changes associated with halide segregation in MAPb(Br 0.5I0.5)3 and FA0.83Cs0.6)3 films.

TL;DR: In this article , an electrically conductive conformal "diffusion barrier" is introduced between interconnecting subcells to improve the power conversion efficiency (PCE) and stability of all-perovskite tandem solar modules.

TL;DR: Correct control of crystallite size in CH3NH3PbI3 thin films is demonstrated by regulating substrate temperature during vacuum co-deposition of inorganic and organic precursors, and new routes to developing efficient solar cells are offered through reproducible control of crystal morphology and composition.