Topic
Photoemission spectroscopy
About: Photoemission spectroscopy is a research topic. Over the lifetime, 10821 publications have been published within this topic receiving 250888 citations. The topic is also known as: photoelectron spectroscopy & PES.
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TL;DR: In this article, the X-ray photoelectron spectra of 14 complexes of Al3+, Cr 3+, Fe3+, Co3+ and Cu2+ with 3-X-2,4-pentanedione (X = H, Cl, Br) were determined to analyse the nature of metal-ligand bonding in these complexes.
61 citations
TL;DR: The vibrational fine structure on the O $1s$ line is completely dominated by the antisymmetric stretching mode with a frequency of 307 $(\ifmmode\pm\else\textpm\fi{}3)\mathrm{meV}$ as discussed by the authors.
Abstract: The C and O $1s$ photoelectron lines of the C${\mathrm{O}}_{2}$ molecule in the gas phase have been measured with vibrational resolution in the threshold region. The vibrational fine structure on the O $1s$ line is completely dominated by the antisymmetric stretching mode with a frequency of 307 $(\ifmmode\pm\else\textpm\fi{}3)\mathrm{meV}$. This mode can be excited only via vibronic coupling, as predicted by Domcke and Cederbaum [Chem. Phys. 25, 189 (1977)], and provides a mechanism for dynamic core-hole localization. Relaxation effects are found to affect strongly the vibrational intensity distribution of the photoelectron line.
61 citations
TL;DR: In this paper, the effects of oxygen incorporation on the electronic transport properties of 2D MoS2 have been studied via temperature dependent and gate voltage dependent transport measurements of physical vapor deposited 2D MOS2.
Abstract: The effects of oxygen incorporation on the electronic transport properties of two-dimensional (2D) MoS2 have been studied via temperature dependent and gate voltage dependent transport measurements of physical vapor deposited 2D MoS2. Gated micro-van der Pauw cross devices were fabricated from the MoS2 film for transport measurements. Field-effect measurements indicate that incorporated oxygen acts as a p-type dopant for MoS2. The combination of X-ray photoemission spectroscopy surface analysis and Raman measurements of the film indicates that acceptor states resulting from MoSxO3-x inclusions in the MoS2 film are the origin of the p-type doping. Temperature dependent van der Pauw conductivity measurements indicate an acceptor energy of 214 meV above the valence band edge for the acceptor state.
61 citations
Book•
26 Apr 2010
TL;DR: In this article, the future of interfaces is discussed in terms of adsorbate-Semiconductor Sensors and Heterojunctions on semiconductors, as well as other interfaces.
Abstract: Preface 1. Introduction 2. Historical Background 3. Electrical Measurements 4. Interface states 5. Ultrahigh vacuum technology 6. Surface and interface analysis 7. Photoemission spectroscopy 8. Photoemission with soft X-rays 9. Particle-solid scattering 10. Electron energy loss spectroscopy 11. Rutherford backscattering spectrometry 12. Secondary ion mass spectrometry 13. Electron diffraction 14. Scanning tunneling microscopy 15. Optical spectroscopies 16. Cathodoluminescence spectroscopy 17. Electronic Materials' Surfaces 18. Adsorbates on Electronic Materials' Surfaces 19. Adsorbate-Semiconductor Sensors 20. Heterojunctions 21. Metals on semiconductors 22. The future of interfaces Appendices
61 citations
TL;DR: In this paper, the surface of polytetrafluoroethylene (PTFE) and polyethyleneterepthalate (PET) was investigated under different gaseous atmospheres.
Abstract: We have investigated by x‐ray photoelectron spectroscopy (XPS) the surface of two polymers [polytetrafluoroethylene and polyethyleneterepthalate (PTFE) and (PET)] which were previously submitted to pulsed UV radiation delivered from an excimer laser (ArF: λ=193 nm). Treatments realized under different gaseous atmospheres allow us to point out mechanisms leading to several chemical transformations at the polymer surface. In the case of PTFE, the high‐fluence irradiations produce defluorination with surface oxidation. The latter is mainly due to air moisture. The deposition of some ablated fragments on the surface has also been observed. For PET, the major modifications are produced below the ablation threshold. They are characterized by severe deoxidation due to the loss of CO and CO2. The irradiations under oxygen and nitrogen atmospheres show the possibility of grafting new functionalities at the polymer surface.
61 citations