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首页> 外文会议>American Society of Mechanical Engineers(ASME) Integrated Nanosystems Conference: Design, Synthesis, and Applications(NANO 2004); 20040922-24; Pasadena,CA(US) >MULTIWALLED CARBON NANOTUBE / NANOFIBER ARRAYS AS CONDUCTIVE AND DRY ADHESIVE INTERFACE MATERIALS
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MULTIWALLED CARBON NANOTUBE / NANOFIBER ARRAYS AS CONDUCTIVE AND DRY ADHESIVE INTERFACE MATERIALS

机译：多壁碳纳米管/纳米纤维阵列作为导电和干式粘合界面材料

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摘要

We demonstrate the possibility of making conductive and dry adhesive interfaces between multiwalled carbon nano-tube (MWNT) and nanofiber (MWNF) arrays grown by chemical vapor deposition with transition-metal as catalyst on silicon substrates. The maximum observed adhesion force between MWNT and MWNF surfaces is 3.5 mN for an apparent contact area of 2 mm by 4 mm. The minimum contact resistance measured at the same time is ～20 Ω. Contact resistances of MWNT-MWNT and MWNT-gold interfaces were also measured as pressure forces around several milli-Newton were applied at the interface. The resulting minimum contact resistances are on the same order but with considerable variation from sample to sample. For MWNT-MWNT contacts, a minimum contact resistance of ～ 1 Ω is observed for a contact area of 2 mm by 1 mm. The relatively high contact resistances, considering the area density of the nanotubes, might be explained by the high cross-tube resistances at the contact interfaces and limited inter-penetration of the nanotube arrays.
机译：我们证明了在过渡金属作为催化剂在硅基底上通过化学气相沉积法生长的多壁碳纳米管（MWNT）和纳米纤维（MWNF）阵列之间制作导电和干胶界面的可能性。对于2mm x 4mm的表观接触面积，在MWNT和MWNF表面之间观察到的最大粘附力为3.5 mN。同时测得的最小接触电阻为〜20Ω。还测量了MWNT-MWNT和MWNT-金界面的接触电阻，因为在界面上施加了几毫牛顿左右的压力。最终的最小接触电阻处于相同的数量级，但样品之间的差异很大。对于MWNT-MWNT触点，对于2 mm x 1 mm的接触面积，观察到的最小接触电阻为〜1Ω。考虑到纳米管的面积密度，相对较高的接触电阻可以通过接触界面处的高横管电阻和纳米管阵列的有限互穿来解释。

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