The Photoelectron Spectroscopy Analysis Of Ag、Cu、Au Using Energy Range60≤hv≤200ev Synchrotron Radiation

The experiments adopt the synchrotron radiation light source measured thepolycrystalline metal s, p, d electrons of Cu, Ag which irradiated by the light sourceenergy range from60to200eV under room temperature and low temperatureconditions and get the photoelectron spectroscopy. Adopt the light source measuredthe polycrystalline metal s, p, d and f electrons of Au which irradiated by the lightsource energy650eV under room temperature. The image of the binding energy andrelative intensity is draw by origin software. Analyze the different metal electronicenergy band and properties of photoelectron spectroscopy peak. From these thephotoelectron spectroscopy seeking out the unique spectral peak (similar to (E)function).Using solid physics energy band theory to calculate the width of theconduction band of the samples Cu、Ag、Au. Analysis the reason of is difference fromroom temperature and low temperature photoelectron spectroscopy. The goal of thestudy is to find out the photoelectron beam wave source that has goodmonochromaticity and whose energy spectrum shape is close to the (E)function.The main research works could be expounded as follows:Part I: Introduction of the photoelectron spectroscopy theoretical. From threeaspects:(1) Photoelectron spectroscopy in accordance with the generation mechanismand in accordance with the classification of the light source, methods of identificationand applications.(2) Describes the composition of the photoelectron spectrographand describes each part of the photoelectron spectrograph in detail.(3) Introductionof the reason of the subject which chose the synchrotron radiation light sources that isbecause it is specificity different from of the other light sources.Part II: Expound of the monovalent metal experiments.From the experimentpurpose, the experiment content, experimental method, the experimental principle,experimental procedures, experimental data acquisition, processing experimental data,experiment to conclusions.Part III: Using of the energy band theory solid physics to calculatie the width ofthe monovalent noble-metal of Cu、Ag and Au conduction band and compare theresult with the experimental values, analyze the reasons of experimental error.Part IV: Analyzing the width of the photoelectron beam of the presenttransmission electron microscopy thermionic emission and field emission.Comparedthe thermal field emission and field emission electron beam the peak width withsynchrotron radiation photoelectron spectroscopy of monovalent noble-metal. The shape of individual spectral peak is narrower than the thermal field emission electronspectroscopy, and the main reason is that the broadening of the inner electrons whichis formed by atoms is narrow. The result: the Au sample experimental4f7/2peak issharp and narrow. Full width at half-maximum (FWHM) is2.2eV. So, proposed theidea and researchAccording to the above theoretical and experimental analysis, Finally, Thisarticle put forward with the conclusion that the new monochromatic light source mayreplace the existing electronic beam light source; it should be able to improve thepoint resolution of the present transmission electron microscopy effectively.