By Topic

Pulse Field Emission Characteristics of Vertical Few-Layer Graphene Cold Cathode

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Yu Zhang ; State Key Lab. of Optoelectron. Mater. & Technol., Sun Yat-sen Univ., Guangzhou, China ; Deliu Deng ; Lijun Zhu ; Shaozhi Deng
more authors

Vertical few-layer graphene (FLG) is an excellent field emission material, with an atomically thin edge and a 2-D heat dissipation area. A pulse voltage driving operation was used to achieve a high field emission current. The pulsewidth and duty ratio affected the field emission characteristics of the FLG due to the current heating effect. The optimal pulse parameters were obtained. A maximum current of 32 mA in 3-μs pulsing operation was achieved from a 5-mm diameter FLG film, which was 10 times greater than the maximum current achieved in continuous current operation. The current fluctuation was 4.1%. A method for further increasing the emission current is proposed.

Published in:

Electron Devices, IEEE Transactions on  (Volume:61 ,  Issue: 6 )