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运用紫外光电子能谱(UPS)和低能电子衍射(LEED)技术,对银(110)表面上有机分子(perylene)的生长进行了研究.有机分子价带的4个特征峰分别位于费米能级以下3.5、4.8、6.4和8.5eV处.当有机薄膜约为单分子层(厚度为0.3nm)时,在银(110)表面上形成C(6×2)的有序结构.角分辨紫外光电子能谱(ARUSP)的测量显示:在界面处的分子平面平行于衬底.在银(110)表面稳定性很高,随着对衬底加热,有机材料发生脱附,在140℃以下没有观察到分解现象.
The growth of organic perylene on the surface of silver (110) was investigated by using UV-Vis and LEED techniques.The four characteristic valence bands of the organic molecular valence band were located at the Fermi level 3.5, 4.8, 6.4 and 8.5 eV below.The ordered structure of C (6 × 2) was formed on the surface of silver (110) when the organic thin film was about a monomolecular layer with a thickness of 0.3 nm. The angularly resolved ultraviolet photoelectrons The measurement of the energy spectrum (ARUSP) shows that the molecular plane at the interface is parallel to the substrate. The stability of the silver (110) surface is very high and with the heating of the substrate, the organic material desorbs and is not observed below 140 ° C To decomposition phenomenon.