Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ...
Materials Science
Jun 22, 2017
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29
Researchers at the Max-Born-Institute have now mapped the linear and nonlinear optical polaron response using ultrafast two-dimensional spectroscopy in the THz frequency range. As they discuss in the current issue of Physical ...
General Physics
Oct 19, 2023
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31
Polarons are quasiparticles composed of excess electrons dressed with virtual phonon clouds. They are ubiquitous in materials and play a key role in various physicochemical properties, including superconductivity, photocatalysis ...
Optics & Photonics
Aug 28, 2023
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40
Many hypotheses seek to explain the particularly favorable properties of perovskite semiconductors for solar cells. Polarons or a giant Rashba effect, for example, are thought to play a major role. A team at BESSY II has ...
Condensed Matter
Jun 9, 2022
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125
A new theoretical study at Monash University has improved our understanding of the interplay between quantum and thermal fluctuations (or excitations) in quantum matter.
Quantum Physics
May 13, 2020
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69
Recent Australian-led research has provided a world's first measurement of interactions between Fermi polarons in an atomically-thin 2D semiconductor, using ultrafast spectroscopy capable of probing complex quantum materials.
Quantum Physics
Oct 20, 2022
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19
Organic-inorganic hybrid metal halide perovskites (MHPs) have attracted tremendous attention for optoelectronic applications. For example, cost-effective solar cells, solid-state lighting, memristors, and ultrafast spin switches ...
Condensed Matter
Jul 8, 2022
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9
Among organic thermoelectric materials, PEDOT:PSS (poly(3,4-ethylenedioxythiophene-poly(4-styrenesulfonate)) thin films have received extensive attention but suffer from low Seebeck coefficients of 10–20 μV K-1 due to ...
Analytical Chemistry
Apr 3, 2024
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12
Through a close collaboration between experimentalists at University of California Berkeley and theorists in Los Alamos's Theoretical Division group T-1, the Center for Nonlinear Studies (CNLS), and Center for Integrated ...
Materials Science
Jul 20, 2018
1
0
Photoelectrodes based on BiVO4 are considered top candidates for solar hydrogen production. But what exactly happens when they come into contact with water molecules? A study in the Journal of the American Chemical Society ...
Analytical Chemistry
Nov 14, 2022
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