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25.3: Concept of a Carbon‐Nanotube FED with a Normally on Driving Under‐Gate Structure
Author(s) -
Zhong Xuefei,
Fan Zhaowen,
Tang Yongming,
Yin Hanchun,
Tu Yan,
Wang Baoping,
Tong Linsu
Publication year - 2004
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1825807
Subject(s) - cathode , anode , field electron emission , field emission display , voltage , carbon nanotube , materials science , electric field , optoelectronics , electron , luminance , electrical engineering , nanotechnology , physics , engineering , optics , electrode , quantum mechanics
The structure and working principle of a normally on driving under‐gate FED are presented in this paper. Different from traditional under‐gate driving scheme, field emission electrons are pulled out from cathode by anode voltage, and restrained by negative gate voltage. The electric field inside the emission region was calculated by finite element method. The emission property of the cathode was also studied by numerical calculation method. The results indicated that a uniform and large emission area could be obtained in this new under‐gate FED. The study may provide a powerful theoretic support for the feasibility of this new kind under‐gate FED. This normally on driving under‐gate FED achieves large emission area, notable emission uniformity, high luminance efficacy and high anode voltage.