In this paper we report the observation of enhanced field emission properties from thiolated multi-wall carbon nanotubes (MWCNTs) produced by a simple and effective two-step chemical surface modification technique. This technique implements carboxylation and thiolation on the MWCNTs synthesized by microwave plasma chemical vapor deposition (MPCVD) on the flexible carbon cloth substrate. The resulting thiolated MWCNTs were found to have a very low threshold field value of 1.25 V mu m~(-1) and a rather high field enhancement factor of 1.93 X 10~4, which are crucial for applications in versatile vacuum microelectronics.
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机译：在本文中，我们报告了通过简单有效的两步化学表面改性技术生产的硫醇化多壁碳纳米管（MWCNT）增强的场发射特性的观察结果。该技术通过在柔性碳布基材上进行微波等离子体化学气相沉积（MPCVD）合成的MWCNT上实现羧化和硫醇化。发现所得的硫醇化的MWCNT具有非常低的阈值场值1.25 Vμm〜（-1）和相当高的场增强因子1.93 X 10〜4，这对于在通用真空微电子学中的应用至关重要。
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