Ink-jet printing of carbon nanotube thin film transistors
Ink-jet printing of carbon nanotube thin film transistors
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DOI：
10.1063/1.2770835
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发表时间：
2007-08-15
影响因子：
3.2
通讯作者：
Milne, W. I.
中科院分区：
文献类型：
--
作者：
Beecher, P.;Servati, P.;Milne, W. I.
喷墨印刷是将有源电子器件放置在塑料基板上的重要工艺。我们证明了喷墨印刷作为一种可行的方法大面积制造碳纳米管（CNT）薄膜晶体管（TFT）。我们研究了用于生产稳定的CNT溶液（“油墨”）的不同途径。这些包括CNT解束的分散方法和使用不同的溶剂，如N-甲基-2-吡咯烷酮。所得的可印刷油墨通过喷墨分配到电极承载硅基板上。源极到漏极的间隙由碳纳米管的网状结构桥接。尽管存在金属碳纳米管，我们的设备表现出场效应行为，与类似的0.07 cm（2）/V s和ON/OFF电流比高达100的有效迁移率。这一结果证明了喷墨印刷用于TFT制造的纳米结构材料的可行性。(C)2007年，美国物理学会。
Ink-jet printing is an important process for placing active electronics on plastic substrates. We demonstrate ink-jet printing as a viable method for large area fabrication of carbon nanotube (CNT) thin film transistors (TFTs). We investigate different routes for producing stable CNT solutions ("inks"). These consist of dispersion methods for CNT debundling and the use of different solvents, such as N-methyl-2-pyrrolidone. The resulting printable inks are dispensed by ink-jet onto electrode bearing silicon substrates. The source to drain electrode gap is bridged by percolating networks of CNTs. Despite the presence of metallic CNTs, our devices exhibit field effect behavior, with effective mobility of similar to 0.07 cm(2)/V s and ON/OFF current ratio of up to 100. This result demonstrates the feasibility of ink-jet printing of nanostructured materials for TFT manufacture. (C) 2007 American Institute of Physics.