title: Hot carrier-selective chemical reactions on Ag(110).
abstract: Here, we show that the pathways, products, and efficiencies of reactions occurring on a metal surface can be spatially modulated by varying the type and energy of hot carriers produced by injecting tunneling electrons or holes from a scanning tunneling microscope tip into the metal surface. Control over the metal surface reactions was demonstrated for the large-scale dissociation reaction of O2 molecules on a Ag(110) surface. Hot electrons (or holes) transported through the metal surface to chemisorbed O2 selectively dissociated the molecule into two oxygen atoms separated along the [110] (or [001]) lattice direction. The reaction selectivity was enhanced compared to the selectivity of a direct reaction involving tunneling carriers.
authors: Department of Chemistry and Bioactive Materials Science and Research Institute of Physics and Chemistry, Chonbuk National University, Jeonju 561-756, Korea. jrhahn@jbnu.ac.kr
authors: Jae Ryang
authors: JR
authors: Hahn
authors: Sang Hoon
authors: SH
authors: Jang
authors: Ki Wan
authors: KW
authors: Kim
authors: Seung Bae
authors: SB
authors: Son