Young-Kwang Jung

May 10, 2024 | onlinelibrary.wiley.com | Affan Iqbal |Satyawan Nagane |Jordi Ferrer Orri |Young-Kwang Jung

Halide perovskites are excellent candidate materials for use in solar cell, LED, and detector devices, in part because their composition can be tuned to achieve ideal optoelectronic properties. Empirical efficiency optimisation has led the field towards compositions rich in FA (formamidinium) on the A-site and I on the X-site, with additional small amounts of MA (methylammonium) or Cs A-site cations and Br X-site anions.

Oct 6, 2023 | link.aps.org | Jong Park |Young-Kwang Jung |Aron Walsh

Popular Summary High-performance thermoelectric materials have been traditionally based on heavy and toxic elements with low crustal abundance. A new generation of materials is emerging that has the potential to push the limits of the figure of merit ZT. The family of metal halides has been rapidly expanding with applications in domains such as photovoltaics, information storage, and radiation sensors.

May 30, 2023 | nature.com | Young-Kwang Jung |Jeiwan Tan |Gyumin Jang |Aron Walsh

AbstractIn principle, the induced chirality of hybrid perovskites results from symmetry-breaking within inorganic frameworks. However, the detailed mechanism behind the chirality transfer remains unknown due to the lack of systematic studies. Here, using the structural isomer with different functional group location, we deduce the effect of hydrogen-bonding interaction between two building blocks on the degree of chirality transfer in inorganic frameworks.