Effect of clay on the surface morphology and field emission properties of screen-printed activated carbon

被引：3
作者：
Lisunova, M. O. [1 ]
Lisunova, Y. O. [1 ]
Lee, S. [1 ]
Kim, J. [1 ]
Kim, Y. [1 ]
Joo, K. [1 ]
Moon, H. [1 ]
Zang, D. [1 ]
机构：
[1] Samsung SDI, Corp R&D Ctr, Yongin 446577, Gyeonggi Do, South Korea
来源：
APPLIED SURFACE SCIENCE | 2008年 / 255卷 / 05期
关键词：
Field emission; Screen-printing; Surface morphology; Activated carbon;
D O I：
10.1016/j.apsusc.2008.07.043
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Surface morphology of the screen-printed activated carbon paste with organophobic montmorillonite clay and electron. field emission properties was studied. X-ray diffraction (XRD), and scanning electron microscopy (SEM) were used to evaluate the distribution of. filler in the carbon paste and the structure of carbon. film. The addition of clay particles improved homogeneous dispersion of carbon in paste, which contributed to the formation of uniform carbon. film during screen-printing. The current density J increased significantly, while the threshold electric. field E(th) decreased when the. filler particles were added to the carbon paste. The enhancement of. field emission properties is believed to be due to the improvement of the dispersivity and adhesiveness of the paste. The organoclay loading also showed better thermal stability. (C) 2008 Elsevier B. V. All rights reserved.
引用
收藏
页码：2109 / 2112
页数：4
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