The Photophysics of Perovskite Emitters: from Ensemble to Single Particle

M Feng, TC Sum - Advanced Materials, 2024 - Wiley Online Library
Halide perovskite emitters are a groundbreaking class of optoelectronic materials
possessing remarkable photophysical properties for diverse applications. In perovskite light …

Making and Breaking of Exciton Cooling Bottlenecks in Halide Perovskite Nanocrystals

JWM Lim, Y Guo, M Feng, R Cai… - Journal of the American …, 2023 - ACS Publications
Harnessing quantum confinement (QC) effects in semiconductors to retard hot carrier
cooling (HCC) is an attractive approach for enabling efficient hot carrier extraction to …

Phonon-driven transient bandgap renormalization in perovskite single crystals

L Wang, H Wang, R Nughays, W Ogieglo, J Yin… - Materials …, 2023 - pubs.rsc.org
Tailoring the electronic structure of perovskite materials on ultrafast timescales is expected
to shed light on optimizing optoelectronic applications. However, the transient bandgap …

MAPbI3 Perovskite Multiple Quantum Wells for Enhanced Light Emission and Detection

LRW White, FU Kosasih, K Ma, J Fu, M Feng… - ACS Energy …, 2024 - ACS Publications
Multiple quantum wells (MQWs) based on thermally evaporated hybrid perovskite have
been demonstrated in type-I and type-II energy band configurations by combining MAPbI3 …

Unveiling Solvation Dynamics of Excited and Ground States via Ultrafast Pump–Dump–Probe Spectroscopy

Y Guo, M Feng, Z Kuang… - The Journal of …, 2023 - ACS Publications
The conventional ultrafast pump–probe spectroscopy has primarily focused on examining
the formation and decay of the excited state intermediates, but it is very difficult to detect …

Hot carrier cooling in lead halide perovskites probed by two-pulse photovoltage correlation spectroscopy

Y Huang, C Guo, L Gao, W Du, H Zheng, D Wu… - Chinese …, 2024 - iopscience.iop.org
The next-generation hot-carrier solar cells, which can overcome the Shockley–Queisser limit
by harvesting excess energy from hot carriers, are receiving increasing attention. Lead …