Photochemical Charge Transfer and Trapping at the Interface Between an Organic Adlayer and an Oxide Semiconductor

December 10, 2003

Journal Article

Photochemical Charge Transfer and Trapping at the Interface Between an Organic Adlayer and an Oxide Semiconductor

Abstract

In this study, we identify surface sites associated with charge transfer and trapping during photo-decomposition of an organic adsorbate on the TiO2(110) surface using scanning tunneling microscopy, electron energy loss spectroscopy and photodesorption. Trimethyl acetic acid was selected because it decomposes on TiO2(110) at room temperature to form a densely packed trimethyl acetate adlayer in which each TMA group bridges two TI4+ sites and the acid proton is transfer to a bridging O2 site.

Revised: November 10, 2005 | Published: December 10, 2003

Citation

Henderson M.A., J.M. White, H. Uetsuka, and H. Onishi. 2003. Photochemical Charge Transfer and Trapping at the Interface Between an Organic Adlayer and an Oxide Semiconductor. Journal of the American Chemical Society 125, no. 49:14974-14975. PNNL-SA-39652.