Group-III nitrides and their alloys feature direct bandgaps covering a broad range of the electromagnetic spectrum, making them a promising material system for various …
The ultrafast spatial and temporal dynamics of excited carriers are important to understanding the response of materials to laser pulses. Here we use scanning ultrafast …
Four-dimensional ultrafast electron microscopy (4D-UEM) is a novel analytical technique that aims to fulfill the long-held dream of researchers to investigate materials at extremely …
B Liao, E Najafi - Materials Today Physics, 2017 - Elsevier
The dynamics of photo-excited charge carriers, particularly their transport and interactions with defects and interfaces, play an essential role in determining the performance of a wide …
Understanding the limits of spatiotemporal carrier dynamics, especially in III-V semiconductors, is key to designing ultrafast and ultrasmall optoelectronic components …
K Katayama - Physical Chemistry Chemical Physics, 2024 - pubs.rsc.org
The pattern-illumination time-resolved phase microscopy (PI-PM) method is a technique used to study the microscopic charge carrier dynamics in photocatalytic and photovoltaic …
There have been recent research advances in AlGaN-based self-assembled nanowires (NWs) as building blocks for ultraviolet (UV) optoelectronics grown by plasma-assisted …
Herein, we describe the selective mapping of surface charge carriers, achieved using scanning ultrafast electron microscopy, for visualization of light-triggered carrier dynamics …