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首页> 外文期刊>Journal of Materials Chemistry, C. materials for optical and electronic devices >Understanding Marangoni flow-driven solidification of polymer semiconducting films on an aqueous substrate
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Understanding Marangoni flow-driven solidification of polymer semiconducting films on an aqueous substrate

机译：了解Marangoni在水性基质上的聚合物半导体膜的流动凝固

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Here, in the context of the polymer film on an aqueous transfer process, the value of spreading coefficient (S) plays an important role in spreading the polymer solution droplet on the base media. A highSis key to improving the polymer film uniformity and crystalline structure, which affect the organic field-effect transistor (OFET) device performance. In addition, the films floating on the base media were transferred either upward (UST) or downward (BST) to differ their solidified orientations. The differences between the UST and BST cases confirmed that the solvent in the polymer solution droplet was rapidly extracted at the interface with the base media and was slowly evaporated near the air interface with the polymer solution. The results induce rapid solidification with poor structural properties at the base media interface and slow solidification with good structural properties at the air interface. The surface properties of the polymer semiconducting films were advantageous in the vicinity of the air/polymer solution interfaces for use as a channel active layer, resulting in good OFET device performances for the UST case.
机译：这里，在聚合物膜对水性转移过程的背景下，扩散系数的值在将聚合物溶液液滴施加在基础介质上起着重要作用。一种改善聚合物膜均匀性和晶体结构的高级键，其影响有机场效应晶体管（OFET）器件性能。另外，漂浮在基础介质上的膜被向上（UST）或向下（BST）转移以不同的固化取向。 UST和BST案例之间的差异证实，在与基础介质的界面中快速萃取聚合物溶液液滴中的溶剂，并在与聚合物溶液附近缓慢蒸发。结果在基础介质界面处具有差的结构性能，并在空气界面处具有良好的结构性能凝固的快速凝固。聚合物半导体膜的表面性质在空气/聚合物溶液界面附近有利的是用作沟道有源层的，导致UST案例的良好的装置性能。

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