Carbon nanotube high-current-density field emitters
    5.
    发明申请
    Carbon nanotube high-current-density field emitters 有权
    碳纳米管大电流密度场发射体

    公开(公告)号:US20060066202A1

    公开(公告)日:2006-03-30

    申请号:US11137725

    申请日:2005-05-24

    摘要: High-current density field emission sources using arrays of nanofeatures bundles and methods of manufacturing such field emission sources are provided. Variable field emission performance is provided with the variance in the bundle diameter and the inter-bundle spacing, and optimal geometries for the lithographically patterned arrays were determined. Arrays of 1-μm and 2-μm diameter multi-walled carbon nanotube bundles spaced 5 μm apart (edge-to-edge spacing) were identified as the most optimum combination, routinely producing 1.5 to 1.8 A/cm2 at low electric fields of approximately 4 V/μm, rising to >6 A/cm2 at 20 V/μm over a ˜100-μm-diameter area.

    摘要翻译: 提供了使用纳米尺寸束阵列的大电流密度场发射源和制造这种场致发射源的方法。 可变场发射性能具有束直径和束间距的变化,并且确定了用于光刻图案阵列的最佳几何形状。 被认为是最优选的组合,通常产生1.5至1.8A / cm 2的数量的间隔5毫米(边缘到边缘间距)的1毫米和2毫米直径的多壁碳纳米管束的数组, SUP>在大约4V / mum的低电场下,在〜100-mum直径的区域上以20V / m 2升高至> 6A / cm 2。