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首页> 外文期刊>Organic Electronics >Structural ordering versus energy band alignment: Effects of self-assembled monolayers on the metal/semiconductor interfaces of small molecule organic thin-film transistors
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Structural ordering versus energy band alignment: Effects of self-assembled monolayers on the metal/semiconductor interfaces of small molecule organic thin-film transistors

机译：结构排序与能带排列：自组装单分子层对小分子有机薄膜晶体管的金属/半导体界面的影响

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摘要

A model describing the influence of self-assembled monolayers on the contact resistance of bottom-contact organic thin-film transistors is presented. The model takes the contact geometry, the energy level alignment and the structural order of the organic films into consideration when describing the contact effects of organic transistors. The treatment of the metal source/drain electrodes of the transistors by self-assembled monolayers allows for tuning the work function of the metal contact and an improved ordering of the organic molecules on top of the source/drain contacts. The results reveal that the contact resistance is mainly determined by the molecular ordering, rather than the tuning of the work function. The model is compared to experimentally measured contact resistances for different self-assembled monolayers.
机译：提出了描述自组装单分子层对底部接触有机薄膜晶体管的接触电阻的影响的模型。在描述有机晶体管的接触效应时，该模型考虑了接触几何形状，能级对准和有机膜的结构顺序。通过自组装单层对晶体管的金属源极/漏极的处理允许调整金属触点的功函数，并改善源极/漏极触点顶部的有机分子的有序排列。结果表明，接触电阻主要由分子顺序决定，而不是由功函数的调节决定。将模型与不同自组装单层的实验测量接触电阻​​进行比较。

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