Morphology dependent field emission from In2O3 nanostructures

被引:48
作者
Kar, Soumitra [1 ]
Chakrabarti, Supriya
Chaudhuri, Subhadra
机构
[1] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, W Bengal, India
[2] Osaka Prefecture Univ, Grad Sch Engn, Dept Phys & Elect, Sakai, Osaka 591, Japan
关键词
D O I
10.1088/0957-4484/17/12/041
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In2O3 nanostructures such as aligned nanocolumn arrays, nanowires and nanopyramids were fabricated using a simple physical evaporation technique. Nanocolumn arrays and the nanowires were produced using an Au catalysed vapour - liquid - solid (VLS) technique and the nanopyramid structures were prepared using a non-catalytic approach. Field-emission studies revealed that the morphologies of these In2O3 nanoforms have considerable effects on the field-emission properties. Among these nanoforms, nanocolumn arrays have the lowest turn-on voltage and the highest field enhancement factor. The results indicated that the In2O3 nanoforms could be used as cathode materials for the fabrication of devices based on field-emission properties.
引用
收藏
页码:3058 / 3062
页数:5
相关论文
共 23 条
[1]   Enhanced field emission of ZnO nanowires [J].
Banerjee, D ;
Jo, SH ;
Ren, ZF .
ADVANCED MATERIALS, 2004, 16 (22) :2028-+
[2]   Electron emission in intense electric fields [J].
Fowler, RH ;
Nordheim, L .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1928, 119 (781) :173-181
[3]   ELECTRON FIELD-EMISSION FROM DIAMOND AND OTHER CARBON MATERIALS AFTER H-2, O-2 AND CS TREATMENT [J].
GEIS, MW ;
TWICHELL, JC ;
MACAULAY, J ;
OKANO, K .
APPLIED PHYSICS LETTERS, 1995, 67 (09) :1328-1330
[4]   Direct synthesis of single crystalline In2O3 nanopyramids and nanocolumns and their photoluminescence properties [J].
Guha, P ;
Kar, S ;
Chaudhuri, S .
APPLIED PHYSICS LETTERS, 2004, 85 (17) :3851-3853
[5]   Efficient field emission from single crystalline indium oxide pyramids [J].
Jia, HB ;
Zhang, Y ;
Chen, XH ;
Shu, J ;
Luo, XH ;
Zhang, ZS ;
Yu, DP .
APPLIED PHYSICS LETTERS, 2003, 82 (23) :4146-4148
[6]   Correlation of field emission and surface microstructure of vertically aligned carbon nanotubes [J].
Jo, SH ;
Tu, Y ;
Huang, ZP ;
Carnahan, DL ;
Huang, JY ;
Wang, DZ ;
Ren, ZF .
APPLIED PHYSICS LETTERS, 2004, 84 (03) :413-415
[7]   Field-emission studies on thin films of zinc oxide nanowires [J].
Jo, SH ;
Lao, JY ;
Ren, ZF ;
Farrer, RA ;
Baldacchini, T ;
Fourkas, JT .
APPLIED PHYSICS LETTERS, 2003, 83 (23) :4821-4823
[8]   Effect of length and spacing of vertically aligned carbon nanotubes on field emission properties [J].
Jo, SH ;
Tu, Y ;
Huang, ZP ;
Carnahan, DL ;
Wang, DZ ;
Ren, ZF .
APPLIED PHYSICS LETTERS, 2003, 82 (20) :3520-3522
[9]   In2O3 nanowires, nanobouquets and nanotrees [J].
Kam, KC ;
Deepak, FL ;
Cheetham, AK ;
Rao, CNR .
CHEMICAL PHYSICS LETTERS, 2004, 397 (4-6) :329-334
[10]   Field emission from carbon nanotubes for displays [J].
Kim, JM ;
Choi, WB ;
Lee, NS ;
Jung, JE .
DIAMOND AND RELATED MATERIALS, 2000, 9 (3-6) :1184-1189