Joel Smith

Aug 6, 2024 | nature.com | Fangyuan Jiang |Yangwei Shi |Tanka R. Rana |Daniel Morales |Isaac E Gould |Joel Smith | +6 more

AbstractAs perovskite photovoltaics stride towards commercialization, reverse bias degradation in shaded cells that must current match illuminated cells is a serious challenge. Previous research has emphasized the role of iodide and silver oxidation, and the role of hole tunnelling from the electron-transport layer into the perovskite to enable the flow of current under reverse bias in causing degradation.

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.