Stretchable active-matrix organic light-emitting diode display using printable elastic conductors
Stretchable active-matrix organic light-emitting diode display using printable elastic conductors
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DOI：
10.1038/nmat2459
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发表时间：
2009-06-01
期刊：
影响因子：
41.2
通讯作者：
Someya, Takao
中科院分区：
文献类型：
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作者：
Sekitani, Tsuyoshi;Nakajima, Hiroyoshi;Someya, Takao
可拉伸性将大大扩展电子产品的应用范围，特别是对于大面积电子显示器、传感器和致动器。与传统设备不同，可拉伸电子产品可以覆盖任意表面和可移动部件。然而，大的障碍是制造具有高导电性的大面积高度可拉伸的电气布线。在这里，我们描述了可印刷的弹性导体的制造，该弹性导体包括均匀分散在氟化橡胶中的单壁碳纳米管（SWNT）。使用离子液体和喷射研磨，我们生产长而细的单壁碳纳米管束，可以在橡胶中形成发达的导电网络。电导率大于100 S cm（-1），拉伸率大于100%。充分利用这种非凡的导电性，我们构建了一种类似橡胶的可拉伸有源矩阵显示器，包括集成的印刷弹性导体、有机晶体管和有机发光二极管。显示器可以拉伸30-50%，并在半球上展开，而不会造成任何机械或电气损坏。
Stretchability will significantly expand the applications scope of electronics, particularly for large-area electronic displays, sensors and actuators. Unlike for conventional devices, stretchable electronics can cover arbitrary surfaces and movable parts. However, a large hurdle is the manufacture of large-area highly stretchable electrical wirings with high conductivity. Here, we describe the manufacture of printable elastic conductors comprising single-walled carbon nanotubes (SWNTs) uniformly dispersed in a fluorinated rubber. Using an ionic liquid and jet-milling, we produce long and fine SWNT bundles that can form well-developed conducting networks in the rubber. Conductivity of more than 100 S cm(-1) and stretchability of more than 100% are obtained. Making full use of this extraordinary conductivity, we constructed a rubber-like stretchable active-matrix display comprising integrated printed elastic conductors, organic transistors and organic light-emitting diodes. The display could be stretched by 30-50% and spread over a hemisphere without any mechanical or electrical damage.