English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Real-space observation of far- and near-field-induced photolysis of molecular oxygen on an Ag(110) surface by visible light

Lin, C., Ikeda, K., Shiota, Y., Yoshizawa, K., & Kumagai, T. (2019). Real-space observation of far- and near-field-induced photolysis of molecular oxygen on an Ag(110) surface by visible light. The Journal of Chemical Physics, 151(14): 144705. doi:10.1063/1.5112158.

Item is

Files

show Files
hide Files
:
1.5112158.pdf (Publisher version), 4MB
Name:
1.5112158.pdf
Description:
-
OA-Status:
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
2019
Copyright Info:
AIP
License:
-

Locators

show

Creators

show
hide
 Creators:
Lin, Chenfang1, Author           
Ikeda, Kei2, Author
Shiota, Yoshihito2, Author
Yoshizawa, Kazunari2, Author
Kumagai, Takashi1, 3, Author           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
2Institute for Materials Chemistry and Engineering, Kyushu University, 744 Moto-oka, Fukuoka, 819-0395 Japan, ou_persistent22              
3JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: Dissociation of molecular oxygen is an important elementary process in heterogeneous catalysis. Here, we report on a real-space observation of oxygen photolysis on the Ag(110) surface at 78 K by far- and near-field excitation in the ultraviolet–near-infrared range using a low-temperature scanning tunneling microscope (STM) combined with wavelength-tunable laser excitation. The photolysis of isolated oxygen molecules on the surface occurs even by visible light with the cross section of ∼10−19 cm2. Time-dependent density functional theory calculations reveal optical absorption of the hybridized O2–Ag(110) complex in the visible and the near-infrared range which is associated with the oxygen photolysis. We suggest that the photolysis mechanism involves a direct charge transfer process. We also demonstrate that the photolysis can be largely enhanced in plasmonic STM junctions, and the cross section is estimated to be ∼10−17 cm-2in the visible and the near-infrared range, which appears to be an interesting feature of plasmon-induced reactions from the perspective of photochemical conversion with the aid of solar energy.

Details

show
hide
Language(s): eng - English
 Dates: 2019-06-032019-08-082019-10-102019-10-14
 Publication Status: Issued
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1063/1.5112158
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: The Journal of Chemical Physics
  Other : J. Chem. Phys.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Woodbury, N.Y. : American Institute of Physics
Pages: 7 Volume / Issue: 151 (14) Sequence Number: 144705 Start / End Page: - Identifier: ISSN: 0021-9606
CoNE: https://pure.mpg.de/cone/journals/resource/954922836226