Research on the field emission mechanism of nano-structured carbon film

The field emission （FE） characteristics of nano-structured carbon films （NSCFs） are investigated. The saturation behaviour of the field emission current density found at high electric field E cannot be reasonably explained by the traditional Fowler-Nordheim （F-N） theory. A three-region E model and t...

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Published in:Chinese physics B 2012-08, Vol.21 (8), p.522-526, Article 087902
Main Author: 王艳燕 李英爱 许基松 顾广瑞
Format: Article
Language:English
Subjects:
Carbon
Current density
E region
Electric fields
E模型
Field emission
Nanostructure
Saturation
发射机制
发射电流密度
场致发射
曲线拟合方法
碳薄膜
空间电荷限制电流
纳米结构
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description The field emission （FE） characteristics of nano-structured carbon films （NSCFs） are investigated. The saturation behaviour of the field emission current density found at high electric field E cannot be reasonably explained by the traditional Fowler-Nordheim （F-N） theory. A three-region E model and the curve-fitting method are utilized for discussing the FE characteristics of NSCFs. In the low, high, and middle E regions, the FE mechanism is reasonably explained by a modified F-N model, a corrected space-charge-limited-current （SCLC） model and the joint model of F N and SCLC mechanism, respectively. Moreover, the measured FE data accord well with the results from our corrected theoretical model.
doi_str_mv 10.1088/1674-1056/21/8/087902
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source Institute of Physics
subjects Carbon
Current density
E region
Electric fields
E模型
Field emission
Nanostructure
Saturation
发射机制
发射电流密度
场致发射
曲线拟合方法
碳薄膜
空间电荷限制电流
纳米结构
title Research on the field emission mechanism of nano-structured carbon film
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