Synthesis and characterisation of perfluoroacene-terminated self-assembled monolayers

目前，高度氟化的芳烃作为n-半导体材料获得了极大的兴趣。直到今天，只有很少的基本化合物（如全氟并四苯和并五苯）已被合成，显示出非常有前途的整体性能。在目前的项目中，全氟并苯应该成为第一次取代这些分子附着在表面的自组装单分子层的形式。为此，必须首先开发合适的合成化学。在改变合适的分子参数（并苯系统的大小、连接单元的长度、可能的锚定基团的调整）时，应探索和优化它们对相应SAM的结构性质的影响。这样的单层系统应该显示出有趣的电子特性，并扩展了基于分子的电子学领域的可能性，特别是关于n-诱导。将与合作伙伴，特别是物理化学领域的合作伙伴密切合作，开展相应的调查。

Highly fluorinated arenes currently gain significant interest as n-semiconducting materials. Until today only very few basic compounds (such as perfluorotetracene and pentacene) have been synthesized, showing very promising bulk properties. In the current project, perfluoroacenes should become substituted for the first time to attach these molecules to surfaces in form of self-assembled monolayers. For this, a suitable synthetic chemistry has to be developed first. Upon variation of suitable molecular parameters (size of the acene system, length of the linking unit, possibly adjustment of the anchoring group) their influence on the structural properties of the respective SAMs shall be explored and optimized. Such monolayer systems should show interesting electronic properties and extend the possibilities in the area of molecule-based electronics, in particular regarding n-semiconduction. The respective investigations will be performed in close collaboration with partners in particular from physical chemistry.