Field emission studies of novel ZnO nanostructures in high and low field regions

被引：84
作者：
Ramgir, Niranjan S. [1 ]
Late, Dattatray J.
Bhise, Ashok B.
Mulla, Imtiaz S.
More, Mahendra A.
Joag, Dilip S.
Pillai, Vijayamohanan K.
机构：
[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India
[2] Univ Pune, Dept Phys, Ctr Adv Studies Mat Sci & Solid State Phys, Pune 411007, Maharashtra, India
来源：
NANOTECHNOLOGY | 2006年 / 17卷 / 11期
关键词：
D O I：
10.1088/0957-4484/17/11/003
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A study of the field emission characteristics of novel structures of ZnO, namely marigolds, multipods and microbelts, has been carried out in both the close proximity configuration and the conventional field emission microscope. The use of a conventional field emission microscope overcomes the drawback of arc formation at high field values. The nonlinearity in the Fowler - Nordheim ( F - N) plot, a characteristic feature of semiconductors has been observed and explained on the basis of electron emission from both the conduction and the valence bands. The current stability exhibited by these structures is also promising for future device applications.
引用
收藏
页码：2730 / 2735
页数：6
相关论文
共 19 条
[1]   Measuring the work function at a nanobelt tip and at a nanoparticle surface [J].
Bai, XD ;
Wang, EG ;
Gao, PX ;
Wang, ZL .
NANO LETTERS, 2003, 3 (08) :1147-1150
[2]   Field-emission properties of nanocrystalline tin oxide films [J].
Baranauskas, V ;
Fontana, M ;
Guo, ZJ ;
Ceragioli, HJ ;
Peterlevitz, AC .
SENSORS AND ACTUATORS B-CHEMICAL, 2005, 107 (01) :474-478
[3]   High brightness electron beam from a multi-walled carbon nanotube [J].
de Jonge, N ;
Lamy, Y ;
Schoots, K ;
Oosterkamp, TH .
NATURE, 2002, 420 (6914) :393-395
[4]   Field emission from a-GaN films deposited on Si (100) [J].
Joag, DS ;
Late, DJ ;
Lanke, UD .
SOLID STATE COMMUNICATIONS, 2004, 130 (05) :305-308
[5]   Stable field emission from tetrapod-like ZnO nanostructures [J].
Li, QH ;
Wan, Q ;
Chen, YJ ;
Wang, TH ;
Jia, HB ;
Yu, DP .
APPLIED PHYSICS LETTERS, 2004, 85 (04) :636-638
[6]   ZnO nanoneedles with tip surface perturbations: Excellent field emitters [J].
Li, YB ;
Bando, Y ;
Golberg, D .
APPLIED PHYSICS LETTERS, 2004, 84 (18) :3603-3605
[7]  
MODINOS A, 1984, FIELD EMISSION THERM
[8]  
Pan ZW, 2000, ADV MATER, V12, P1186, DOI 10.1002/1521-4095(200008)12:16<1186::AID-ADMA1186>3.0.CO
[9]  
2-F
[10]   Effect of RuO2 in the shape selectivity of submicron-sized SnO2 structures [J].
Ramgir, NS ;
Mulla, IS ;
Vijayamohanan, KP .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (25) :12297-12303
12