Emerging ultrafast techniques for studying quantum materials
In quantum materials, emergent functional properties resulting from strong correlations or
electronic topology offer opportunities for new applications. Over the past decade, ultrafast …
electronic topology offer opportunities for new applications. Over the past decade, ultrafast …
Carriers, quasi-particles, and collective excitations in halide perovskites
Halide perovskites (HPs) are potential game-changing materials for a broad spectrum of
optoelectronic applications ranging from photovoltaics, light-emitting devices, lasers to …
optoelectronic applications ranging from photovoltaics, light-emitting devices, lasers to …
Confinement and exciton binding energy effects on hot carrier cooling in lead halide perovskite nanomaterials
The relaxation of the above-gap (“hot”) carriers in lead halide perovskites (LHPs) is
important for applications in photovoltaics and offers insights into carrier–carrier and carrier …
important for applications in photovoltaics and offers insights into carrier–carrier and carrier …
Transient High-Harmonic Spectroscopy in an Inorganic–Organic Lead Halide Perovskite
High-harmonic generation is the frequency upconversion of an intense femtosecond infrared
laser in a material. In condensed-phase high-harmonic generation, laser-driven currents of …
laser in a material. In condensed-phase high-harmonic generation, laser-driven currents of …
Electronic and structural fingerprints of charge-density-wave excitations in extreme ultraviolet transient absorption spectroscopy
Femtosecond core-level transient absorption spectroscopy is utilized to investigate
photoinduced dynamics of the charge density wave in 1 T-TiSe 2 at the Ti M 2, 3 edge (32 …
photoinduced dynamics of the charge density wave in 1 T-TiSe 2 at the Ti M 2, 3 edge (32 …
Ultrafast dynamics in perovskite-based optoelectronic devices
S Gong, Y Huang, X Yu, Q Hu, J Liu, J Meng… - Cell Reports Physical …, 2023 - cell.com
Halide-perovskite-based materials are rising stars for optoelectronic applications. The key
for optoelectronic device development is the photogenerated carrier dynamics, which …
for optoelectronic device development is the photogenerated carrier dynamics, which …
Hot carrier extraction from 2D semiconductor photoelectrodes
R Austin, YR Farah, T Sayer… - Proceedings of the …, 2023 - National Acad Sciences
Hot carrier-based energy conversion systems could double the efficiency of conventional
solar energy technology or drive photochemical reactions that would not be possible using …
solar energy technology or drive photochemical reactions that would not be possible using …
A-site cation influence on the conduction band of lead bromide perovskites
Hot carrier solar cells hold promise for exceeding the Shockley-Queisser limit. Slow hot
carrier cooling is one of the most intriguing properties of lead halide perovskites and …
carrier cooling is one of the most intriguing properties of lead halide perovskites and …
Direct observation of ultrafast lattice distortions during exciton–polaron formation in lead halide perovskite nanocrystals
The microscopic origin of slow hot-carrier cooling in lead halide perovskites remains
debated and has direct implications for applications. Slow hot-carrier cooling of several …
debated and has direct implications for applications. Slow hot-carrier cooling of several …
The Hot Phonon Bottleneck Effect in Metal Halide Perovskites
The hot phonon bottleneck (HPB) effect has been proposed as one of the main phenomena
behind the slow cooling in metal halide perovskites. Even though consensus has been …
behind the slow cooling in metal halide perovskites. Even though consensus has been …