Ultraviolet Photoelectron Spectroscopy

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• Ultraviolet photoelectron spectroscopy — (UPS) refers to the measurement of kinetic energy spectra of photoelectrons emitted by ultraviolet photons, to determine molecular energy levels in the valence region.If Einstein’s photoelectric law is applied to a free molecule, the kinetic… …   Wikipedia

• X-ray photoelectron spectroscopy — [ right|thumb|350px|Basic components of a monochromatic XPS system.] X ray photoelectron spectroscopy (XPS) is a quantitative spectroscopic technique that measures the elemental composition, empirical formula, chemical state and electronic state… …   Wikipedia

• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

• Spectroscopy — Analysis of white light by dispersing it with a prism is example of spectroscopy. Spectroscopy ( …   Wikipedia

• Photoemission spectroscopy — (PES), also known as photoelectron spectroscopy, refers to energy measurement of electrons emitted from solids, gases or liquids by the photoelectric effect, in order to determine the binding energies of electrons in a substance. The term refers… …   Wikipedia

• Ultraviolet — UV redirects here. For other uses, see UV (disambiguation). UVB redirects here. For the mysterious shortwave radio station in Russia, see UVB 76. For other uses, see Ultraviolet (disambiguation). False color image of the Sun s corona as seen in… …   Wikipedia

• Extreme ultraviolet — Extreme Ultra Violet radiation (EUV) is generally considered to be the part of the electromagnetic spectrum spanning from 120 nm down to 10 nm. Its main uses are photoelectron spectroscopy, solar imaging, and lithography. EUV is naturally… …   Wikipedia

• UPS — ultraviolet photoelectron spectroscopy; uninterruptible power supply; uroporphyrinogen synthetase; uterine progesterone system …   Medical dictionary

• UPS — • ultraviolet photoelectron spectroscopy; • uninterruptible power supply; • uroporphyrinogen synthetase; • uterine progesterone system …   Dictionary of medical acronyms & abbreviations

• analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …   Universalium

• Spectrométrie photoélectronique UV — La spectrométrie photoélectronique UV (en anglais UV photoelectron spectroscopy : UPS) implique la mesure des spectres de photoélectrons induits par des photons ultraviolets (UV). Elle est utilisée pour étudier les niveaux d énergie de la… …   Wikipédia en Français