Graphene and Mobile Ions: The Key to All-Plastic, Solution-Processed Light-Emitting Devices
Graphene and Mobile Ions: The Key to All-Plastic, Solution-Processed Light-Emitting Devices
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DOI：
10.1021/nn9018569
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发表时间：
2010-02-01
期刊：
影响因子：
17.1
通讯作者：
Robinson, Nathaniel D.
中科院分区：
文献类型：
--
作者：
Matyba, Piotr;Yamaguchi, Hisato;Robinson, Nathaniel D.
“有机”或“塑料”电子器件的新兴领域已经将低电压、低成本和节能的照明和显示器作为有机发光二极管（OLED）电视和相机和移动的电话中的显示器推向市场。尽管使用基于碳的材料作为发光层，但是先前的高效有机电子发光器件需要至少一个金属电极。在这里，我们利用化学衍生的石墨烯作为全塑料薄膜结构设备中的透明阴极，类似于OLED，称为发光电化学电池（LEC）。使用丝网印刷导电聚合物作为部分透明的阳极和微米厚的有源层溶液沉积从发光聚合物和聚合物电解质的混合物，我们证明了一个发光器件完全基于溶液加工的碳基材料。我们的研究结果表明，低电压，廉价，高效的发光器件可以不使用金属。换句话说，电子产品可以真正做到“有机”。
The emerging field of "organic" or "plastic" electronics has brought low-voltage, ultrathin, and energy-efficient lighting and displays to market as organic light-emitting diode (OLED) televisions and displays in cameras and mobile phones. Despite using carbon-based materials as the light-emitting layer, previous efficient organic electronic light-emitting devices have required at least one metal electrode. Here, we utilize chemically derived graphene for the transparent cathode in an all-plastic sandwich-structure device, similar to an OLED, called a light-emitting electrochemical cell (LEC). Using a screen-printable conducting polymer as a partially transparent anode and a micro meter-thick active layer solution-deposited from a blend of a light-emitting polymer and a polymer electrolyte, we demonstrate a light-emitting device based solely on solution-processable carbon-based materials. Our results demonstrate that low-voltage, inexpensive, and efficient light-emitting devices can be made without using metals. In other words, electronics can truly be "organic".