Electronic structure and work function of potassium-doped PTCDA thin films
Electronic structure and work function of potassium-doped PTCDA thin films
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钾掺杂PTCDA薄膜的电子结构和功函数
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
M. Knupfer
中科院分区：
文献类型：
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作者：
G. Fuentes;M. Knupfer
用光电子能谱研究了掺钾的3，4：9，10-二萘嵌苯四甲酸二酐（PTCDA）薄膜的电子性质。钾的加入导致电荷转移到PTCDA分子中，如通过价带光电发射数据的演变所示，并且钾离子主要与PTCDA分子的羰基端基相互作用。在我们的研究中制备的钾掺杂PTCDA薄膜都不是金属的，这归因于电子相关效应。
The electronic properties of thin films of potassium-doped 3,4:9,10-perylenetetracarboxylic dianhydride (PTCDA) have been studied using photoemission spectroscopy. Potassium addition results in a charge transfer to PTCDA molecules as signaled by the evolution of the valence band photoemission data, and the potassium ions mainly interact with the carbonyl end groups of the PTCDA molecules. None of the potassium-doped PTCDA films prepared in our studies is metallic, which is attributed to the effect of electronic correlations.