Template Deformation-Tailored ZnO Nanorod/Nanowire Arrays: Full Growth Control and Optimization of Field-Emission

被引：226

作者：

Zeng, Haibo ^{[1
]}

Xu, Xijin ^{[1
]}

Bando, Yoshio ^{[1
]}

Gautam, Ujjal K. ^{[1
]}

Zhai, Tianyou ^{[1
]}

Fang, Xiaosheng ^{[1
]}

Liu, Baodan ^{[1
]}

Golberg, Dmitri ^{[1
]}

机构：

[1] Natl Inst Mat Sci, World Premier Int Ctr Mat Nanoarchitecton MANA, Tsukuba, Ibaraki 3050044, Japan

来源：

ADVANCED FUNCTIONAL MATERIALS | 2009年 / 19卷 / 19期

关键词：

NANOWIRE ARRAYS; PATTERNED GROWTH; ORDERED ARRAYS; NANOROD ARRAYS; ZINC-OXIDE; NANOSTRUCTURES; TEMPERATURE; PERFORMANCE; FABRICATION; ROUTE;

D O I：

10.1002/adfm.200900714

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Here, a facile and effective route toward full control of vertical ZnO nanorod (NR)/nanowire (NW) arrays in centimeter-scale areas and considerable improvement of field-emission (FE) performance is reported. Controlled deformation of colloidal crystal monolayer templates is introduced by heating near glass-transition temperature. The NR/NW density, uniformity, and tapering were all adjusted through selection of template size and deformation, and electrolyte composition. In line with the adjustments, the field-emission performance of the arrays is significantly improved. A low turn-on electric field of 1.8 V mu m(-1), a field-enhancement factor of up to 5 750, and an emitting current density of up to 2.5 mA cm(-2) were obtained. These improved parameters would benefit their potential application in cold-cathode-based electronics.

引用

页码：3165 / 3172

页数：8

共 54 条

[1] Tuning optical band gap of vertically aligned ZnO nanowire arrays grown by homoepitaxial electrodeposition [J].

Anthony, Savarimuthu Philip ;

Lee, Jeong In ;

Kim, Jin Kon .

APPLIED PHYSICS LETTERS, 2007, 90 (10)

[2] 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

[3]

CAO B, 2003, CHEM COMMUN, V8, P982

[4]

Cao BQ, 2007, J PHYS CHEM C, V111, P2470, DOI 10.1021/jp0666611

[5] Robust high current field emitter tips and arrays for vacuum microelectronics devices [J].

Charbonnier, FM ;

Mackie, WA ;

Hartman, RL ;

Xie, TB .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2001, 19 (03) :1064-1072

[6] Soft solution route to directionally grown ZnO nanorod arrays on Si wafer; room-temperature ultraviolet laser [J].

Choy, JH ;

Jang, ES ;

Won, JH ;

Chung, JH ;

Jang, DJ ;

Kim, YW .

ADVANCED MATERIALS, 2003, 15 (22) :1911-+

[7] Optical transmission through hexagonal arrays of subwavelength holes in thin metal films [J].

Ctistis, G. ;

Patoka, P. ;

Wang, X. ;

Kempa, K. ;

Giersig, M. .

NANO LETTERS, 2007, 7 (09) :2926-2930

[8] Defect control and its influence on the exciton emission of electrodeposited ZnO nanorods [J].

Cui, Jingbiao .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (28) :10385-10388

[9] Template-assisted large-scale ordered arrays of ZnO pillars for optical and piezoelectric applications [J].

Fan, HJ ;

Lee, W ;

Hauschild, R ;

Alexe, M ;

Le Rhun, G ;

Scholz, R ;

Dadgar, A ;

Nielsch, K ;

Kalt, H ;

Krost, A ;

Zacharias, M ;

Gösele, U .

SMALL, 2006, 2 (04) :561-568

[10] Self-assembly of ZnO nanowires and the spatial resolved characterization of their luminescence [J].

Fan, HJ ;

Bertram, F ;

Dadgar, A ;

Christen, J ;

Krost, A ;

Zacharias, M .

NANOTECHNOLOGY, 2004, 15 (11) :1401-1404

← 1 2 3 4 5 6 →