A5037586169- 2D Materials and Applications
- MXene and MAX Phase Materials
- Thermal properties of materials
- Advanced Electron Microscopy Techniques and Applications
- Advanced biosensing and bioanalysis techniques
- Thermal Radiation and Cooling Technologies
- Optical Coatings and Gratings
- Electron and X-Ray Spectroscopy Techniques
- Laser Material Processing Techniques
- Advanced Memory and Neural Computing
- Ferroelectric and Negative Capacitance Devices
- Photoacoustic and Ultrasonic Imaging
- Machine Learning in Materials Science
- Thin-Film Transistor Technologies
University of Cambridge
2025
Beijing Institute of Technology
2022-2023
The formation of core-shell heterostructures allows direct contact two components for more efficient energy transfer while requires exquisite lattice match. Lattice mismatch is one the most challenging obstacles combining with different phases. In this work, we develop a strategy to overcome limitation and grow α-phase lead halide perovskites (LHPs) onto β-phase lanthanide-doped nanoparticles (LnNPs) by seeding sub-8 nm LnNPs. This LnNP@LHP heterostructure effectively passivates surface...
Elucidation of hot carrier transport and cooling mechanisms at the micro-/nanoscale is critical for optoelectronics, thermal management, photocatalysis. Spatiotemporal evolution electrons usually convoluted with their ultrafast dynamics. Herein, an microscopy employed to directly track spatiotemporal distribution photoexcited electrons, providing a transformative approach unravel competitive relationship cooling. In temporal profiles electron distribution, anomalous contracting stage showing...
MXenes have garnered significant interest in energy conversion and catalysis due to their exceptional optical electronic properties. The extended lifetime of photocarriers high carrier mobility can be attributed large polarons MXenes. Therefore, it is crucial comprehend the fundamental dynamics Here, we report a comprehensive analysis small using ultrafast spectroscopy. Small are found form efficiently under transversal surface plasmon (SP) excitation. Under interband transition (IBT)...
Inside Back Cover In article number 2201260, Zhu and co-workers demonstrate an innovative strategy to directly track the evolution of hot electron temperature distribution with simultaneously high temporal spatial resolution. An anomalous contraction unravels competition between transport cooling. This work enriches tool kit ultrafast techniques provides guidance for rational design micro/nanodevices.
MXenes exhibit exceptional optical and plasmonic properties have been widely used in sensors optoelectronics. Understanding the charge carrier dynamics is crucial guiding design of these applications. In this study, we transient absorption spectroscopy to investigate ultrafast metallic Ti<sub>2</sub>CT<sub>x</sub> semiconductor-like Nb<sub>4</sub>C<sub>3</sub>T<sub>x</sub>. Although both Nb<sub>4</sub>C<sub>3</sub>T<sub>x</sub> demonstrate surface plasmon (SP) properties, their SP recovery...
Nonequilibrium electron distribution in copper films is induced under femtosecond laser irradiation. The ultrafast dynamics studied by pump and supercontinuum white light probe technique of transient reflectivity. Measurements thin with two thicknesses the range ballistic length are conducted. We observed faster rise longer tailing trace thinner film, contrast to results some previous studies, which could be attributed weak heat transfer across interface glass substrate.