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Beck, Kenneth M.
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Topics
Publications (17/17 displayed)
- 2013Photoemission Electron Microscopy of a Plasmonic Silver Nanoparticle Trimercitations
- 2013Plasmon-Induced Optical Field Enhancement studied by Correlated Scanning and Photoemission Electron Microscopycitations
- 2012Near-field focused photoemission from polystyrene microspheres studied with photoemission electron microscopycitations
- 2011Plasmonic enhancement of thin-film solar cells using gold-black coatingscitations
- 2011Plasmonic Field Enhancement of Individual Nanoparticles by Correlated Scanning and Photoemission Electron Microscopycitations
- 2010Effect of Surface Charge on Laser-induced Neutral Atom Desorptioncitations
- 2008Laser and Electrical Current Induced Phase Transformation of In<sub>2</sub>Se<sub>3</sub> Semiconductor thin film on Si(111)citations
- 2007An In Situ Study of the Martensitic Transformation in Shape Memory Alloys Using Photoemission Electron Microscopycitations
- 2007Real Time Study of Cu Diffusion Through a Ru Thin Film by Photoemission Electron Microscopy (PEEM)
- 2007Study of Copper Diffusion Through Ruthenium Thin Film by Photoemission Electron Microscopycitations
- 2007Photoemission Electron Microscopy of TiO2 Anatase Films Embedded with Rutile Nanocrystalscitations
- 2006In Situ Photoelectron Emission Microscopy of a Thermally Induced Martensitic Transformation in a CuZnAI Shape Memory Alloycitations
- 2006Laser-Induced Oxygen Vacancy Formation and Diffusion on TiO2(110) Surfaces Probed by Photoemission Electron Microscopycitations
- 2005Surface Electronic Properties and Site-Specific Laser Desorption Processes of Highly Structured Nanoporous MgO Thin Filmscitations
- 2002Preparation of Pt/TiO2 Nancomposite Films by 2-Beam Pulsed Laser Depositioncitations
- 2002"EXAFS Study of Rare-Earth Element Coordination in Calcite"citations
- 2001Preparation of Pt/TiO2 Nanocomposite Thin Films by Pulsed Laser Deposition and their Photoelectrochemical Behaviorscitations
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article
Laser-Induced Oxygen Vacancy Formation and Diffusion on TiO2(110) Surfaces Probed by Photoemission Electron Microscopy
Abstract
Photoemission electron microscopy is used to probe photon-induced oxygen vacancies generated on TiO2 (110)-(1×2) surfaces. An increased oxygen vacancy concentration within the irradiated region leads to an increase of local photoelectron emission. The local oxygen deficient region can be compensated by exposing the surface to molecular oxygen at 1×10-5 Torr, or via surface diffusion at 450 K in vacuum. The surface diffusion coefficient was estimated to be on the order of 10-12 m2/s. Photoemission electron microscopy allows in situ studies of surface electronic defect formation and removal.