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The organic electroluminescent the luminescence (Organic ElectroLuminescence, OEL) this stage the field of flat panel display of cutting-edge technology, which has been more and more attention because of the broad application prospects. The organic light emitting devices (Organic Light-emitting Devices, referred OLEDs) with high luminous efficiency, full-color display, wide viewing angle, fast response, low drive voltage and low operating temperature range of interesting advantages, and are believed to be in the near future will gradually replace LCD technology, thus becoming the dominant of the next generation display. However, the organic light emitting device in terms of luminous efficiency, life and stability, there are still many deficiencies, thus affecting its popularity. To solve these problems, the work of the research on the theory of organic light-emitting devices further development of organic semiconductor industry. Most of the work just by virtue of the experience of organic light-emitting devices studied organic semiconductor light-emitting mechanism has not been given sufficient attention. Since the organic light emitting device is built on the basis of the film structure, so the manner of preparation of the film and structure and interface characteristics, etc. have a significant impact in the organic device applications. Therefore, the basic research, such as research on the basic theory of the interface characteristics of organic devices, as well as film and orderly growth mechanism, charge transport, and luminescence characteristics. For in-depth understanding of the working mechanism of the organic device, and for guiding the design of the organic light emitting device is very important. X-ray photoelectron spectroscopy (X-ray photoelectron spectroscopy, also known as Electron Spectroscopy for Chemical Analysis, referred to as XPS or ESCA) has a high surface sensitivity, suitable for the application of the qualitative and quantitative analysis of the surface elements, the same can also be applied to the elements chemical valences. Therefore, XPS method is widely used in materials, electronic materials, chemical industry, machinery and other fields. This article is the use of XPS studied by means of iron phthalocyanine Iron Phthalocyanine (FePC) on Ag (110) surface evaporation characteristics. In the test, we found that a weak interaction occurs between FePC and Ag substrate. We Stranski-Krastanov growth model (referred to as the SK growth mode) growth model. And by the experimental data to analyze the possibility. The experiment also found to reduce the growth in the work function of coating thickness with FePC. Further, a chemical shift changes may be due to the polarization phenomena produced.
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