Conference paper
Hot Electron Photoemission from Plasmonic Nanoparticles: Role of Transient Absorption in Surface Mechanism
P. N. Lebedev Physical Institute1
State Nuclear Energy Corporation “Rosatom”2
St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)3
Department of Photonics Engineering, Technical University of Denmark4
Metamaterials, Department of Photonics Engineering, Technical University of Denmark5
University College Cork6
Wuhan University7
We analyze and compare surface- and vol ume-based internal photoelectric effects from spherical nanoparticles, obtaining analytical expression s for the photoemission rate in both cases. Similar to results for a flat metal surface, one can show that the surface mechanism preva ils, since it is unaffected by detrimental hot electron collisions.
Transient ab sorption results from dielectric permittivity discontinuity at the nanoparticle boundary and leads to a substantial (by ~5 times) increase of the photoelectron emission rate.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2014 |
| Pages: | 31-33 |
| Proceedings: | 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics |
| ISBN: | 1479932566 , 147993450X , 147993450x , 1479934526 , 9781479932566 , 9781479934508 and 9781479934522 |
| Types: | Conference paper |
| DOI: | 10.1109/MetaMaterials.2014.6948547 |
| ORCIDs: | Lavrinenko, Andrei |
Absorption Cooling Metals Nanoparticles Photoelectricity Photonics Plasmons analytical expressions detrimental hot electron collisions dielectric permittivity discontinuity flat metal surface hot carriers hot electron photoemission nanoparticle boundary nanoparticles permittivity photoelectron emission rate photoemission plasmonic nanoparticles plasmonics spherical nanoparticles surface mechanism surface-based internal photoelectric effect transient absorption volume-based internal photoelectric effect
