標題: | Electron Field Emission Properties of Nanomaterials on Rough Silicon Rods |
作者: | Wu, Hung-Chi Tsai, Tsung-Yen Chu, Fu-Hsuan Tai, Nyan-Hwa Lin, Heh-Nan Chiu, Hsin-Tien Lee, Chi-Young 應用化學系 Department of Applied Chemistry |
公開日期: | 14-一月-2010 |
摘要: | Highly porous, individually separated, and vertically aligned rough silicon rods (r-SiRs) were formed via a modified electroless metal deposition (EMD) approach. Despite inheriting the length of crowded silicon nanowires (NWs) obtained by the conventionally adopted EMD method, the r-SiRs are distributed sparsely, subsequently forming an excellent field emitter substrate. The electron field emission (EFE) of carbon nanotubes (CNTs) grown on r-SiRs can be turned on at (E(0))(CNTs/r-SiRs) = 2.3 V/mu m, yielding a high EFE current density, (J(c))(CNTs/r-SiR) = 3.7 mA/cm(2) in an applied field of 5.1 V/mu m, Additionally, a cactuslike structure consisting of zinc oxide NWs on r-SiRs can be turned on at 2.9 V/mu m. The absence of a high-temperature or expensive photolithographic process makes r-SiRs a promising alternative as a silicon base field emitter substrate. |
URI: | http://dx.doi.org/10.1021/jp908566q http://hdl.handle.net/11536/5974 |
ISSN: | 1932-7447 |
DOI: | 10.1021/jp908566q |
期刊: | JOURNAL OF PHYSICAL CHEMISTRY C |
Volume: | 114 |
Issue: | 1 |
起始頁: | 130 |
結束頁: | 133 |
顯示於類別: | 期刊論文 |