Intense field electron emission source designed from large area array of dense rutile TiO2 nanopillars

被引：14
作者：
Didwal, Pravin N. [1 ,2 ]
Chikate, Parameshwar R. [3 ]
Bankar, Prashant K. [2 ]
More, Mahendra A. [2 ]
Devan, Rupesh S. [3 ]
机构：
[1] Chonnam Natl Univ, Dept Mat Sci & Engn, 77 Yongbongro, Gwangju 61186, South Korea
[2] Univ Pune, Dept Phys, Pune 411007, Maharashtra, India
[3] Indian Inst Technol, Discipline Met Engn & Mat Sci, Indore 453552, Madhya Pradesh, India
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2019年 / 30卷 / 03期
关键词：
ARCHITECTURES; PERFORMANCE; DYE;
D O I：
10.1007/s10854-018-00570-9
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The uniform and highly dense nanopillars of rutile TiO2 were synthesized by the hydrothermal method and demonstrated as a highly intense source for the application in field electron emission. The TiO2 nanopillars formed by a bunch of the many nanorods were nearly perpendicular to FTO substrate. The stoichiometric composition and chemical properties of Ti and O were confirmed by X-ray photoelectron spectroscopy. The rutile TiO2 nanopillars transferred on the carbon tape to prepare cathode for field emission (FE) performance exhibit the superior current density of 1.03mA/cm(2) at the applied electric field of 3.2V/mu m, and the lower turn-on field of 1.2V/mu m defined at a current density of 10 mu A/cm(2). The result of the FE revealed that rutile TiO2 nanostructure enhances the FE without any coating, doping, and surface modifications.
引用
收藏
页码：2935 / 2941
页数：7
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