Open AccessField emission from single diamond particle
Author(s) -
Guang Yang,
Dabo Guo,
Changzhi Gu,
Dou Yan,
Hang Song
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.143
Subject(s) - diamond , field electron emission , materials science , chemical vapor deposition , particle (ecology) , tungsten , scanning electron microscope , electron , protein filament , field (mathematics) , atomic physics , analytical chemistry (journal) , molecular physics , nanotechnology , physics , composite material , chemistry , nuclear physics , metallurgy , oceanography , mathematics , chromatography , geology , pure mathematics
The I-V characteristics of a diamond particle deposited by hot-filament chemical vapor deposition on a tungsten tip was measured in a dual-probe scanning electron microscope (DP-SEM) chamber by introducing Mo tips into the chamber as a measurement probe. The I-V characteristic of well crystallized diamond particle follows Ohm's law, and no field electron emission was observed, while the cauliflower-like particle satisfies the Pool-Frenkel (PF) theory and the field emission was observed clearly. These results are contributed to the defects in CVD diamond.