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利用UPS与ARUPS对有机半导体材料 5 (N 正丁基 3,4 ,9,10 四甲酸亚酰胺 N’ 苯基 ) 10 ,15 ,2 0 三苯基卟啉在Ru(0 0 0 1)上的界面特性进行了研究 .研究结果表明 ,在Ru(0 0 0 1)表面上 ,与有机半导体材料价带电子轨道有关的谱峰分别位于费米能级以下 4 5 ,6 8和 9 2eV处 ,其最高占据态 (价带顶位置 )位于费米能级以下 1 5eV处 .在衬底温度低于 2 0 0℃时 ,该有机半导体材料能够在Ru(0 0 0 1)上稳定吸附 ,在Ru(0 0 0 1)上的脱附开始于在 2 0 0℃ .ARUPS结果显示 ,构成该材料分子的卟啉和两个稠环不在同一个平面内 ,即该材料分子中的两个稠环平面成一定的夹角 ,至少有一个稠环平面与衬底表面不平行
The organic semiconductor material 5 (n-butyl 3,4,4,10,10 tetracarboxylic acid imide N ’phenyl) 10,15,15,20 triphenylporphyrin in Ru (0 0 0 1) On the surface of Ru (0 0 0 1), the peaks related to valence band electron orbits of organic semiconductors are located at 45, 68 and 9 2 eV below the Fermi level, respectively , The highest occupied state (valence band top) is located at 15 eV below the Fermi level.The organic semiconducting material can stably adsorb on Ru (0 0 0 1) when the substrate temperature is below 200 ℃ , And the desorption on Ru (0 0 0 1) started at 200 ° C. The results of ARUPS showed that the two condensed rings of porphyrin and constituting the material molecule are not in the same plane, that is, in the material molecule The two fused ring planes form a certain angle, and at least one of the fused ring planes is not parallel to the surface of the substrate