后处理工艺对钛基纳米金刚石涂层场发射特性的影响
Effects of Post-treatment Technology on The Field Emission Property of Nano-diamond Coating on Titanium Substrate
摘要
Abstract
The Ti-based nano-diamond coatings were treated by tape-stripping, metallographic sandpaper friction, and RF hydrogen plasma process.The effects of the post processing technology on the samples were analyzed by testing the morphology, field emission property, and luminescence effect of the samples.The diamond powders were transferred to metal titanium sheet by electrophoresis method, and then the field emission cathode coating was formed after vacuum heat treatment and surface post-treatment technology.finally, the microscopic mophology, field emission properties and luminescence effect of the samples were characterized.For tape-stripping processing, the field emission current density increases from 50 μA/cm2 to 72 μA/cm2 at the electric field of 10 V/μm.For metallographic sandpaper friction, the current density increases from 48 μA/cm2 to 82 μA/cm2 at the electric field of 10 V/μm.Moreover, appropriate hydrogen treatment is helpful to reduce the work function of the surface.The dangling bonds of the diamond surface are saturated by hydrogen atom and C-H bonds form on the surface, which can reduce the electron affinity to improve the field emission properties and luminous uniformity of the samples.关键词
纳米金刚石涂层/后处理工艺/场发射特性/发光效果Key words
nano-diamond coating/surface treatment process/field emission characteristics/luminescence effect分类
信息技术与安全科学引用本文复制引用
杨延宁,李小敏,杨浩浩,吴小帅,张富春..后处理工艺对钛基纳米金刚石涂层场发射特性的影响[J].发光学报,2017,38(6):747-752,6.基金项目
国家自然科学基金(61664008) （61664008）
延安大学引导项目(YD 2016-02) （YD 2016-02）
2016地方高校国家大学生创新创业训练项目(1559,1569) （1559,1569）
高水平大学学科建设专项研究基金(2015SXTS02) （2015SXTS02）
2016延安大学校级大学生创新训练项目(D2016109) （D2016109）
2017年延安大学研究生创新训练项目(YCX201740)资助 Supported by National Natural Science Foundation of China (61664008) （YCX201740）
Guide Project of Yan`an University (YD 2016-02) （YD 2016-02）
2016 Local University National Training Project of Innovation and Entrepreneurship for Undergraduates (1559, 1569) （1559, 1569）
Special Research Funds for Discipline Construction of High Level University Construction (2015SXTS02) （2015SXTS02）
2016 Training Project of Innovation for Undergraduates of Yan'an University (D2016109) （D2016109）
2017 Tranving Project of Innovation of Yan`an University for Graduate Student(YCX201740) （YCX201740）
