Photo-induced chemical processes on metal-semiconductor-metal nanostructures
Journal article, 2012
We show benefits of the use of composite, multilayer nanostructures for performing indirect photochemical processes. The key ideas are as follows. A plasmonic metallic core is employed for light capture and local electro-magnetic field enhancement. This field generates electron-hole pairs in the semiconductor shell where the rate of their relaxation is low. Due to the band bending, hot electrons move towards the external thin metallic catalytic shell and induce reaction on its external surface via electron (hole) attachment to adsorbate LUMO (HOMO) orbitals.
surfaces
nanoparticles
conversion
photodesorption
photochemistry
mechanisms
sensitized solar-cells
particles
plasmonics
films
Author
Vladimir Zhdanov
Chalmers, Applied Physics, Chemical Physics
Bengt Herbert Kasemo
Chalmers, Applied Physics, Chemical Physics
Chemical Physics Letters
0009-2614 (ISSN)
Vol. 524 16-19Subject Categories
Chemical Sciences
DOI
10.1016/j.cplett.2011.12.056