Abstract The difficulty of transferring vertically-aligned carbon nanotube (VACNT) arrays onto specific substrates limits their use in many fields, for instance as thermal interface materials or electrical interconnects in microelectronics. Current transfer techniques are either limited by the type and shape of the target substrate, or their inability to transfer patterned and thin VACNT arrays. Here, we report a simple and clean press transfer method that does not use transfer media, and involves only pressing and lifting steps. This method enables not only the transfer of patterned and very thin VACNT arrays but also the tight adhesion of the arrays onto various flat or curved target substrates. Flexible and transparent electrodes were fabricated by transferring inter-digitated VACNT patterns onto a PET substrate. VACNT arrays with a thickness of 20 μm were transferred onto target substrates cleanly, showing a very low thermal resistance of ∼26 K mm2 W−1. The transferred clean, thin VACNT arrays show good heat dissipation as thermal interface material when integrated into a desktop computer CPU cooling system.

中文翻译：

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超薄/图案垂直排列的碳纳米管阵列的清洁、快速和可扩展的转移

摘要 将垂直排列的碳纳米管 (VACNT) 阵列转移到特定基板上的困难限制了它们在许多领域的应用，例如作为热界面材料或微电子学中的电互连。当前的转移技术要么受目标基板的类型和形状的限制，要么无法转移图案化的薄 VACNT 阵列。在这里，我们报告了一种简单而干净的印刷转移方法，该方法不使用转移介质，仅涉及加压和提升步骤。这种方法不仅可以转移图案化的非常薄的 VACNT 阵列，还可以将阵列紧密粘附到各种平坦或弯曲的目标基板上。通过将相互交叉的 VACNT 图案转移到 PET 基板上来制造柔性和透明电极。厚度为 20 μm 的 VACNT 阵列被干净地转移到目标基板上，显示出非常低的热阻，约为 26 K mm2 W-1。当集成到台式计算机 CPU 冷却系统中时，转移的干净、薄的 VACNT 阵列作为热界面材料显示出良好的散热性。