A NEW TECHNIQUE FOR FULLERENE ONION FORMATION
A NEW TECHNIQUE FOR FULLERENE ONION FORMATION
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DOI：
10.1007/bf01154486
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发表时间：
1995-10-01
影响因子：
4.5
通讯作者：
DELAFOND, J
中科院分区：
文献类型：
--
作者：
CABIOCH, T;RIVIERE, JP;DELAFOND, J
我们提出了一种生长大富勒烯洋葱的原始技术：在高温下将碳离子注入到铜衬底中。用于碳膜生长（金刚石或乱层碳），这种方法是基于碳与铜的不相容性，可以产生一个重要的密度巨大的碳洋葱，尺寸高达几微米，这是迄今为止观察到的最大尺寸。我们首次用TEM、HRTEM和AFM对这些巨型富勒烯进行了表征。在实验和数值计算结果的基础上，我们提出了在注入过程中形成的碳洋葱的机制。
We present an original technique for growing large fullerene onions: carbon-ion implantation at high temperature into copper substrates. Used for carbon film growth (diamond or turbostratic carbon), this method is based on the immiscibility of carbon into copper and can produce an important density of giant carbon onions with size up to some micrometres which is the largest size observed up to now. We characterize these giant fullerenes by TEM, HRTEM and for the fi rst time with AFM. On the basis of both experimental and numerical results we propose a mechanism of formation of the carbon onions during the implantation process.