Weijian Chen

TL;DR: A universal potassium passivation strategy is developed to improve the quality of slot-die printed tin oxide electron transport layers and demonstrate highly efficient and hysteresis-free flexible devices.

TL;DR: Li et al. as mentioned in this paper varied the methylammonium (MA)/formamidinium (FA) composition in perovskite solar cells and compared the structure and density of the intragrain planar defects with device performance.

TL;DR: In this article, the photoluminescence properties and device performance of mixed-cation mixed-halide perovskite are dynamically monitored with and without K+ doping under bias light illumination via a confocal fluorescence microscope, together with ultrafast transient absorption as well as time-dependent and time-resolved PL measurements.

TL;DR: In this article, a comparison of 3D bulk CH3NH3PbBr3 single crystal to 2D perovskite by depth-resolved two-photon PL spectra reveals the contribution of carrier diffusion on energy transport at a distance beyond diffusion length is constantly negligible, though the carrier diffusion indeed exists in the 3D crystal.

TL;DR: The design and facile synthesis of tip-decorated CdS NRs photocatalysts for efficient solar hydrogen production and the effective trapping of photogenerated electrons by the MoOxSy clusters are demonstrated.