• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Xiao, Yixin (Xiao, Yixin.) | Zhang, Xin (Zhang, Xin.) | Liu, Hongliang (Liu, Hongliang.) | Zhang, Jiuxing (Zhang, Jiuxing.)

收录:

EI Scopus SCIE

摘要:

Single-crystal CeB6 tips with different curvature radii are prepared simply and efficiently by using an independently designed electrochemical corrosion device; the average preparation time of a tip was only about 2.75 h. The field emission performance test results show that the single-crystal CeB6 tip exhibits excellent field emission performance. When the applied voltage was 2550 V, the current density of a tip with a curvature radius of about 500 nm is 2.11x10(4) A/cm(2), and as the curvature radii increases, the field emission current density drops sharply. The first principle calculation of the electronic structure and work function of single-crystal CeB6 under an electric field show that the free electron energy of single-crystal CeB6 increases and is enriched at the surface under a strong electric field of 0.1 V/angstrom, with a reduced surface barrier. The CeB6 work function under the strong electric field was greatly reduced, which is conducive to electron emission. By calculating the difference between the vacuum level and the Fermi level, a surface work function of 0.42 eV with an applied electric field of 0.1 V/angstrom of CeB6 was obtained. This provides theoretical support for the single-crystal CeB6 tip exhibiting excellent field emission performance.

关键词:

field emission tip first principle Single-crystal CeB6

作者机构:

  • [ 1 ] [Xiao, Yixin]Beijing Univ Technol, Coll Mat Sci & Engn, Minist Educ, Key Lab Adv Funct Mat, Beijing 100124, Peoples R China
  • [ 2 ] [Zhang, Xin]Beijing Univ Technol, Coll Mat Sci & Engn, Minist Educ, Key Lab Adv Funct Mat, Beijing 100124, Peoples R China
  • [ 3 ] [Liu, Hongliang]Beijing Univ Technol, Coll Mat Sci & Engn, Minist Educ, Key Lab Adv Funct Mat, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Jiuxing]Beijing Univ Technol, Coll Mat Sci & Engn, Minist Educ, Key Lab Adv Funct Mat, Beijing 100124, Peoples R China
  • [ 5 ] [Zhang, Jiuxing]Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China

通讯作者信息:

  • [Zhang, Xin]Beijing Univ Technol, Coll Mat Sci & Engn, Minist Educ, Key Lab Adv Funct Mat, Beijing 100124, Peoples R China

电子邮件地址:

查看成果更多字段

相关关键词:

来源 :

JOURNAL OF ELECTRONIC MATERIALS

ISSN: 0361-5235

年份: 2019

期: 1

卷: 49

页码: 485-492

2 . 1 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:211

JCR分区:3

被引次数:

WoS核心集被引频次: 10

SCOPUS被引频次: 7

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 0

在线人数/总访问数:332/4897264
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司