25 May 2022 - 10:31
[Joint press release with the University of Cambridge] A team of researchers from the UK and Japan has found that the tiny defects which limit the efficiency of perovskites – cheaper alternative...
Type: Press release
10 Mar 2022 - 01:00
Highlights Scientists have utilized a powerful and precise technique to image a unique particle, called a moiré exciton. Excitons are hailed as having the potential to revolutionize technological...
Type: Press release
10 Dec 2021 - 02:00
Highlights Hybrid perovskites are promising materials for the next generation of solar cells as they combine the benefits of both organic and inorganic materials. Currently, the efficiency of...
Type: Press release
22 Apr 2021 - 03:00
Highlights Excitons are excited particles that form when negatively charged electrons bind to positively charged holes Researchers have now used cutting-edge technology to capture the first ever...
Type: Press release
20 Apr 2021 - 14:41
From left to right: Dr. Julien Madéo (co-first author); Prof. Keshav Dani (senior author) and Dr. Michael Man (co-first author).
Type: Photo
19 Apr 2021 - 23:54
In the physics of the very tiny, strange quantum concepts apply. Electrons act as both particles and waves and it is therefore impossible to know both the position and the momentum of an electron at...
Type: Photo
19 Apr 2021 - 23:46
Excitons are technically not particles, but quasiparticles (quasi- meaning “almost” in Latin). They are formed by the electrostatic attraction between excited, negatively charged electrons, and...
Type: Photo
4 Dec 2020 - 04:00
Heralding the end of a decade-long quest, in a promising new class of extremely thin, two-dimensional semiconductors, scientists have for the first time directly visualized and measured elusive...
Type: Press release
30 Nov 2020 - 17:16
By varying the time between the exciton-generating pump pulse and the extreme ultraviolet pulse that kicked out the electrons, the scientists were able to construct a video showing how dark excitons...
Type: Video
30 Nov 2020 - 17:04
Dr. Michael Man, co-first author and staff scientist in the OIST Femtosecond Spectroscopy Unit, loads a sample of the semiconductor material into the electron microscope.
Type: Photo
30 Nov 2020 - 16:56
The instrument used an initial pump pulse of light to excite electrons and generate excitons. This was rapidly followed by a second pulse of light that used extreme ultraviolet photons to kick the...
Type: Photo
30 Nov 2020 - 16:53
 Dr. Julien Madéo, co-first author and staff scientist in the OIST Femtosecond Spectroscopy Unit aligns the beam of extreme ultraviolet light.
Type: Photo
Subscribe to Femtosecond Spectroscopy Unit (Keshav Dani)