The Effect of Dye Molecules and Surface Plasmons in Photon-Induced Hot Electron Flows Detected on Au/TiO2 Nanodiodes

Cited 25 time in webofscience Cited 0 time in scopus
  • Hit : 430
  • Download : 0
We report the combined influence of dye molecules and surface plasmons on hot electron flows generated by the absorption of photons. The study was enabled by the deposition of merbromin and rhodamin B on Au/TiO2 Schottky diodes that exhibit connected island-shaped gold thin films. The short-circuit photocurrent and incident photon-to-electron conversion efficiency (IPCE) measured on Au/TiO2 diodes show significant amplification of the photocurrent when the dye molecules are present on the modified Au islands/TiO2, indicating that the combination of dye molecules and surface plasmons increases the energy conversion efficiency. The positions of the IPCE peaks are in good agreement with the absorbance spectrum of the dye molecules and surface plasmons, suggesting that the detection of hot electron flows can be used as a novel sensing mechanism to characterize charge transport through organic-inorganic and metal-oxide interfaces.
Publisher
AMER CHEMICAL SOC
Issue Date
2012-09
Language
English
Article Type
Article
Keywords

SOLAR-CELLS; CATALYTIC NANODIODE; ENERGY-CONVERSION; DEFECT CHEMISTRY; NANOPARTICLES; EMISSION; PT/TIO2

Citation

JOURNAL OF PHYSICAL CHEMISTRY C, v.116, no.35, pp.18591 - 18596

ISSN
1932-7447
DOI
10.1021/jp303099w
URI
http://hdl.handle.net/10203/103744
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 25 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0