All-Printed Flexible Organic Transistors Enabled by Surface Tension-Guided Blade Coating
All-Printed Flexible Organic Transistors Enabled by Surface Tension-Guided Blade Coating
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DOI：
10.1002/adma.201401520
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发表时间：
2014-08-27
影响因子：
29.4
通讯作者：
Arias, Ana Claudia
中科院分区：
文献类型：
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作者：
Pierre, Adrien;Sadeghi, Mahsa;Arias, Ana Claudia
采用表面能导刀片涂层和喷墨打印相结合的方法，在塑料衬底上制备了高性能、高成品率、低变化率的全印刷有机薄膜晶体管(OTFT)阵列。对功能油墨和印刷工艺进行了优化，以在OTFT叠层的每一层中产生自组装的均匀薄膜。具体地说，我们研究了毛细管数、半导体油墨组成(小分子与聚合物的比例)和添加剂高沸点溶剂浓度对薄膜保真度、图案设计、器件性能和产量的影响。
A combination of surface energy-guided blade coating and inkjet printing is used to fabricate an all-printed high performance, high yield, and low variability organic thin film transistor (OTFT) array on a plastic substrate. Functional inks and printing processes were optimized to yield self-assembled homogenous thin films in every layer of the OTFT stack. Specifically, we investigated the effect of capillary number, semiconductor ink composition (small molecule-polymer ratio), and additive high boiling point solvent concentrations on film fidelity, pattern design, device performance and yields.