Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"electron-stimulated Desorption"”.
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Doping and electron-stimulated desorption of zinc selenide grown by molecular beam epitaxy
Electron irradiation affects ZnSe and ZnMgSe during growth by molecular beam epitaxy. Se desorption rates under electron irradiation are significantly larger than thermal desorption rates. Electron irradiation decreases ZnSe growth rates under Zn-stable conditions, which can be suppressed by …
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Low-energy electron diffraction effects at complex interfaces
Low-energy electron scattering was used as a tool to study electron-stimulated processes at complex interfaces. The electron diffraction in each complex interface is theoretically treated by a multiple scattering formalism for quantitative analysis. Mathematical descriptions of electron-stimulated …
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Scanning Tunneling Microscopy and Spectroscopy of Carbon Nanotubes Interfaced With Silicon Surfaces
… at the nanotube-silicon interface via UHV-STM electron-stimulated desorption resulted in structural and electronic modifications to the SWNT. The growing body of first-principles simulations of the SWNT/Si(100) system was drawn upon in the interpretation of such local perturbations. Weakly …
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Structure analysis of adsorbates on single crystal surfaces using photoelectron diffraction
… been undertaken using scanned-energy mode photoelectron diffraction utilising the two distinct components of the C 1s photoemission peak. Earlier assignments of CO to atop and bridge sites have been confirmed as well as the respective 2:1 ratio of these assignments. Additionally, quantitative …
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Investigation of hydrogen chemisorption on the tungsten (100) surface
… instrument incorporates a monoenergetic beam of electrons, a high resolution, high sensitivity electrostatic ene'rgy spectrome.ter for electrons and ions, plus other hardware and electronics necessary to perform work function measurements, Auger electron spectroscopy, electron stimulated …
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Novel reactions on halogen-terminated SI(100)
… processes. My work has led to a new model for desorption of atoms from surfaces, has shown that halogens prevent hut formation during growth of Ge on Si(l00), and has demonstrated an innovative way that halogens can be used to investigate oxidation of Si(l00). Spontaneous desorption of Cl, Br, …
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Characterizing the role of defects on the sensing performance of carbon nanotube and graphene based gas sensors
… conduction regime can be induced. Generally, desorption of gases from carbon nanotubes is a slow process that limits the carbon nanotubes’ utility as sensors. It will be demonstrated that electron flows in the carbon nanotube above the Poole-Frenkel conduction threshold can stimulate …
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Thermal and electron stimulated chemistry of complex adsorbates on metal surfaces
… Mo(IV) oxide “shell” which encapsulates two electronically active pyramidal sulfite (SIVO32-) groups, and has the ability to reversibly interconvert between two electronic states. In the passive state, at cryogenic temperatures (77 K), the two SO32- groups are non-bonding with respect to the …