Self-assembled Au-Si alloy nanocones: synthesis and electron field emission characteristics

被引：6
|
作者：
Wan, Q
Wang, TH
Lin, CL
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Beijing, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2004年 / 221卷 / 1-4期
基金：
中国国家自然科学基金;
关键词：
Au-Si alloy nanocone; electron-beam evaporation; electron field emission;
D O I：
10.1016/S0169-4332(03)00953-X
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：
Large area, self-assembled Au-Si alloy nanocones are synthesized by vacuum electron-beam evaporation method at 450 degreesC. The formation mechanism is discussed based on the stress effect, interface energy, and Au-Si alloying process. The electron field emission properties of the self-assembled nanocones are studied based on current-voltage measurements and the Fowler-Nordheim equation. Low turn-on field (10 V/mum) with relatively high current density is obtained due to the nanocone-shaped structures with relatively rough morphology. The process temperature is lower than the melting point of ordinary glass. So our method is of great significance to the low-cost vacuum field emission devices fabrication. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：38 / 42
页数：5
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