Surface Plasmon-Driven Hot Electron Flow Probed with Metal-Semiconductor Nanodiodes

Cited 256 time in webofscience Cited 0 time in scopus
  • Hit : 403
  • Download : 0
A continuous flow of hot electrons that are not at thermal equilibrium with the surrounding metal atoms is generated by the absorption of photons. Here we show that hot electron flow generated on a gold thin film by photon absorption (or internal photoemission) is amplified by localized surface plasmon resonance. This was achieved by direct measurement of photocurrent on a chemically modified gold thin film of metal-semiconductor (TiO(2)) Schottky diodes. The short-circuit photocurrent obtained with low-energy photons is consistent with Fowler's law, confirming the presence of hot electron flows. The morphology of the metal thin film was modified to a connected gold island structure after heating such that it measurements on the connected island structures revealed the presence of a indicate an intrinsic correlation between the hot electron flow generated by resonance. exhibits surface plasmon. Photocurrent and optical localized surface plasmon at 550 +/- 20 nm. The results internal photoemission and localized surface plasmon resonance.
Publisher
AMER CHEMICAL SOC
Issue Date
2011-10
Language
English
Article Type
Article
Keywords

CATALYTIC NANODIODE; GOLD NANOPARTICLES; DYNAMICS; FILMS; TIO2; EXCITATION; EMISSION; CURVES; SIZE

Citation

NANO LETTERS, v.11, no.10, pp.4251 - 4255

ISSN
1530-6984
DOI
10.1021/nl2022459
URI
http://hdl.handle.net/10203/96332
Appears in Collection
EEW-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 256 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0