Fan Fu

Jan 3, 2024 | nature.com | Jiajia Suo |Bowen Yang |Edoardo Mosconi |Kyle Frohna |Dominik J. Kubicki |Fan Fu | +7 more

AbstractThe stabilization of grain boundaries and surfaces of the perovskite layer is critical to extend the durability of perovskite solar cells. Here we introduced a sulfonium-based molecule, dimethylphenethylsulfonium iodide (DMPESI), for the post-deposition treatment of formamidinium lead iodide perovskite films. The treated films show improved stability upon light soaking and remains in the black α phase after two years ageing under ambient condition without encapsulation.

Jul 20, 2023 | nature.com | Aobo Ren |Hao Wang |Linjie Dai |Xinyu Bai |Joel Smith |Junzhi Ye | +16 more

AbstractLight-emitting diodes (LEDs) are ubiquitous in modern society, with applications spanning from lighting and displays to medical diagnostics and data communications. Metal-halide perovskites are promising materials for LEDs because of their excellent optoelectronic properties and solution processability. Although research has progressed substantially in optimizing their external quantum efficiency, the modulation characteristics of perovskite LEDs remain unclear.

Jun 12, 2023 | nature.com | Cong Chen |Jarla Thiesbrummel |Changlei Wang |Felix Lang |Guangyao Cui |Xia Hao | +5 more

AbstractThe efficiency of all-perovskite tandem solar cells has surpassed that of single-junction perovskite solar cells, yet they still suffer from interfacial non-radiative recombination losses. Charge-selective materials that can reduce such losses and fabrication cost and be applied to both subcells should be developed.