Thermal effects–an alternative mechanism for plasmon-assisted photocatalysis

Y Dubi, IW Un, Y Sivan - Chemical Science, 2020 - pubs.rsc.org
Recent experiments claimed that the catalysis of reaction rates in numerous bond-
dissociation reactions occurs via the decrease of activation barriers driven by non …

“Hot” electrons in metallic nanostructures—non-thermal carriers or heating?

Y Dubi, Y Sivan - Light: Science & Applications, 2019 - nature.com
Understanding the interplay between illumination and the electron distribution in metallic
nanostructures is a crucial step towards develo** applications such as plasmonic …

Crossover from nonthermal to thermal photoluminescence from metals excited by ultrashort light pulses

Y Sivan, IW Un, I Kalyan, KQ Lin, JM Lupton, S Bange - ACS nano, 2023 - ACS Publications
Photoluminescence from metal nanostructures following intense ultrashort illumination is a
fundamental aspect of light–matter interactions. Surprisingly, many of its basic …

Electronic-based model of the optical nonlinearity of low-electron-density Drude materials

IW Un, S Sarkar, Y Sivan - Physical Review Applied, 2023 - APS
Low-electron-density Drude (LEDD) materials such as indium tin oxide (ITO) are receiving
considerable attention for their combination of CMOS compatibility, unique epsilon-near …

Theory of “hot” photoluminescence from Drude metals

Y Sivan, Y Dubi - ACS nano, 2021 - ACS Publications
We provide a complete quantitative theory for light emission from Drude metals under
continuous wave illumination, based on our recently derived steady-state nonequilibrium …

Electronic and thermal response of low-electron-density drude materials to ultrafast optical illumination

S Sarkar, IW Un, Y Sivan - Physical Review Applied, 2023 - APS
Many low-electron-density Drude (LEDD) materials such as transparent conductive oxides
or nitrides have recently attracted interest as alternative plasmonic materials and extremely …

The role of heat generation and fluid flow in plasmon-enhanced reduction–oxidation reactions

IW Un, Y Sivan - ACS Photonics, 2021 - ACS Publications
Recently, we have shown that thermal effects play a crucial role in speeding up the rate of
bond-dissociation reactions. This was done by applying a simple temperature-shifted …

Experimental practices required to isolate thermal effects in plasmonic photo-catalysis: lessons from recent experiments

Y Sivan, JH Baraban, Y Dubi - OSA Continuum, 2020 - opg.optica.org
Metal nanoparticles have recently been shown experimentally to speed up chemical
reactions when subject to illumination. The mechanisms of this phenomenon have been …

Distinguishing thermal from nonthermal (“hot”) carriers in illuminated molecular junctions

Y Dubi, IW Un, Y Sivan - Nano Letters, 2022 - ACS Publications
The search for the signature of nonthermal (so-called “hot”) electrons in illuminated
plasmonic nanostructures requires detailed understanding of the nonequilibrium electron …

Ultrafast dynamics of optically induced heat gratings in metals

Y Sivan, M Spector - ACS Photonics, 2020 - ACS Publications
Diffusion of heat in metals is a fundamental process which is crucial for a variety of
applications of metal nanostructures. Surprisingly, however, ultrafast heat diffusion received …