High current density, low threshold field emission from functionalized carbon nanotube bucky paper

被引：36

作者：

Kakade, Bhalchandra A. ^{[1
]}

Pillai, Vijayamohanan K. ^{[2
]}

Late, Dattatray J. ^{[3
]}

Chavan, Padmakar G. ^{[3
]}

Sheini, Farid J. ^{[3
]}

More, Mahendra A. ^{[3
]}

Joag, Dilip S. ^{[3
]}

机构：

[1] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[2] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India

[3] Univ Pune, Dept Phys, Ctr Adv Studies Mat Sci & Condensed Matter Phys, Pune 411007, Maharashtra, India

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 07期

关键词：

carbon nanotubes; current density; field emission; fullerenes; LARGE-SCALE SYNTHESIS; ELECTRON-EMISSION;

D O I：

10.1063/1.3479049

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Field emission studies of bucky paper of multiwalled carbon nanotubes (MWNTs), prepared after microwave (MW) assisted acid functionalization are reported along with a comparison with that of "as-grown" sample. MW treated bucky papers reveal an interesting linear field emission behavior in Fowler-Nordheim plot. The field emission currents at preset value are found to be remarkably stable over a period of more than 3 h sustaining current densities of 4.9 mA/cm(2) and 8.5 mA/cm(2) for "as-grown" and functionalized sample, respectively. The enhancement in the field emission due to functionalization has been discussed in terms of tip opening and defect induced charge transport caused by intershell and intertubular interaction. (C) 2010 American Institute of Physics. [doi:10.1063/1.3479049]

引用

页数：3

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