ZnO hexagonal microboxes enclosed only by {0001} facets with epitaxial nanowalls

被引:9
作者
Wang, Ruey-Chi
Liu, Chuan-Pu [1 ]
Huang, Jow-Lay
机构
[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, Taiwan
[2] Natl Cheng Kung Univ, Ctr Micro Nano Sci & Technol, Tainan 70101, Taiwan
[3] Natl Univ Kaohsiung, Dept Chem & Mat Engn, Kaohsiung 811, Taiwan
关键词
D O I
10.1063/1.2369791
中图分类号
O59 [应用物理学];
学科分类号
摘要
Hexagonal ZnO microboxes constructed of ZnO {0001} facets with vertical and horizontal single-crystalline nanowalls were synthesized on Si(001) via a self-assembled process by thermal chemical vapor deposition. High-resolution transmission electron microscopy images show that ZnO sheets with nanowalls on top can be assembled at 86 degrees and 62 degrees to each other by twinning and epitaxy, respectively. The room-temperature cathodoluminescence spectrum of the microboxes shows a strong and sharp ultraviolet emission as well as a negligible green emission. The vertical and horizontal nanowalls have potential to be applied as templates for growth of vertically and horizontally aligned nanowires for three-dimensional nanoelectronics. (c) 2006 American Institute of Physics.
引用
收藏
页数:3
相关论文
共 18 条
[1]   Growth mechanism and characterization of zinc oxide microcages [J].
Fan, HJ ;
Scholz, R ;
Kolb, FM ;
Zacharias, M ;
Gösele, U .
SOLID STATE COMMUNICATIONS, 2004, 130 (08) :517-521
[2]   Mesoporous polyhedral cages and shells formed by textured self-assembly of ZnO nanocrystals [J].
Gao, PX ;
Wang, ZL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (37) :11299-11305
[3]   Single-crystal nanorings formed by epitaxial self-coiling of polar nanobelts [J].
Kong, XY ;
Ding, Y ;
Yang, R ;
Wang, ZL .
SCIENCE, 2004, 303 (5662) :1348-1351
[4]  
Lao JY, 2004, APPL PHYS A-MATER, V78, P539, DOI 10.1007/S00339-003-2391-2
[5]   Self-assembly of aligned ZnO nanoscrews: Growth, configuration, and field emission [J].
Liao, L ;
Li, JC ;
Liu, DH ;
Liu, C ;
Wang, DF ;
Song, WZ ;
Fu, Q .
APPLIED PHYSICS LETTERS, 2005, 86 (08) :1-3
[6]   Growth of epitaxial nanowires at the junctions of nanowalls [J].
Ng, HT ;
Li, J ;
Smith, MK ;
Nguyen, P ;
Cassell, A ;
Han, J ;
Meyyappan, M .
SCIENCE, 2003, 300 (5623) :1249-1249
[7]   Nanobelts of semiconducting oxides [J].
Pan, ZW ;
Dai, ZR ;
Wang, ZL .
SCIENCE, 2001, 291 (5510) :1947-1949
[8]   COMPETING RELAXATION MECHANISMS IN STRAINED LAYERS [J].
TERSOFF, J ;
LEGOUES, FK .
PHYSICAL REVIEW LETTERS, 1994, 72 (22) :3570-3573
[9]   SHAPE TRANSITION IN GROWTH OF STRAINED ISLANDS - SPONTANEOUS FORMATION OF QUANTUM WIRES [J].
TERSOFF, J ;
TROMP, RM .
PHYSICAL REVIEW LETTERS, 1993, 70 (18) :2782-2785
[10]   Low-field electron emission from tetrapod-like ZnO nanostructures synthesized by rapid evaporation [J].
Wan, Q ;
Yu, K ;
Wang, TH ;
Lin, CL .
APPLIED PHYSICS LETTERS, 2003, 83 (11) :2253-2255