Surface morphology and growth mechanism of catalyst-free ZnO and MgxZn1-xO nanorods

被引：31

作者：

Kim, Miyoung ^{[1
]}

Hong, Young Joon ^{[2
,3
]}

Yoo, Jinkyoung ^{[2
,3
]}

Yi, Gyu-Chul ^{[2
,3
]}

Park, Gyeong-Su ^{[4
]}

Kong, Ki-Jeong ^{[5
]}

Chang, Hyunju ^{[5
]}

机构：

[1] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151744, South Korea

[2] POSTECH, Natl CRI Ctr Semicond Nanorods, Pohang 790784, Gyeongbuk, South Korea

[3] POSTECH, Dept Mat Sci & Engn, Pohang 790784, Gyeongbuk, South Korea

[4] Samsung Adv Inst Technol, Suwon 440600, South Korea

[5] Korea Res Inst Chem Technol, Taejon 305600, South Korea

来源：

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2008年 / 2卷 / 05期

关键词：

Zinc oxide;

D O I：

10.1002/pssr.200802084

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-resolution transmission electron microscopy was employed to investigate morphologies and catalyst-free growth mechanism of ZnO/MgxZn1-x 'multi-quantum well' and 'core-shell' nanorod heterostructures as well as ZnO nanorods. The one-dimensional growth mechanism and the agonal faceting of ZnO nanorod were explained by the surface energy anisotropy. The morphology change by alloying with Mg was successfully explained by investigating the energy gain by adatom adsorption and the reduction in the surface energy anisotropy. 0 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：197 / 199

页数：3

共 13 条

[1] Structural and optical properties of uniform ZnO nanosheets [J].

Chen, SJ ;

Liu, YC ;

Shao, CL ;

Mu, R ;

Lu, YM ;

Zhang, JY ;

Shen, DZ ;

Fan, XW .

ADVANCED MATERIALS, 2005, 17 (05) :586-+

[2] Carbon nanotubes as molecular quantum wires [J].

Dekker, C .

PHYSICS TODAY, 1999, 52 (05) :22-28

[3] Chemistry and physics in one dimension: Synthesis and properties of nanowires and nanotubes [J].

Hu, JT ;

Odom, TW ;

Lieber, CM .

ACCOUNTS OF CHEMICAL RESEARCH, 1999, 32 (05) :435-445

[4] Room-temperature ultraviolet nanowire nanolasers [J].

Huang, MH ;

Mao, S ;

Feick, H ;

Yan, HQ ;

Wu, YY ;

Kind, H ;

Weber, E ;

Russo, R ;

Yang, PD .

SCIENCE, 2001, 292 (5523) :1897-1899

[5] ABINITIO MOLECULAR-DYNAMICS FOR LIQUID-METALS [J].

KRESSE, G ;

HAFNER, J .

PHYSICAL REVIEW B, 1993, 47 (01) :558-561

[6] Catalyst-free growth of GaAs nanowires by selective-area metalorganic vapor-phase epitaxy [J].

Noborisaka, J ;

Motohisa, J ;

Fukui, T .

APPLIED PHYSICS LETTERS, 2005, 86 (21) :1-3

[7] Fabrication and photoluminescent properties of heteroepitaxial ZnO/Zn0.8Mg0.2O coaxial nanorod heterostructures [J].

Park, WI ;

Yoo, J ;

Kim, DW ;

Yi, GC ;

Kim, M .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (04) :1516-1519

[8] ZnO nanoneedles grown vertically on Si substrates by non-catalytic vapor-phase epitaxy [J].

Park, WI ;

Yi, GC ;

Kim, MY ;

Pennycook, SJ .

ADVANCED MATERIALS, 2002, 14 (24) :1841-1843

[9] Quantum confinement observed in ZnO/ZnMgO nanorod heterostructures [J].

Park, WI ;

Yi, GC ;

Kim, M ;

Pennycook, SJ .

ADVANCED MATERIALS, 2003, 15 (06) :526-529

[10] Metalorganic vapor-phase epitaxial growth of vertically well-aligned ZnO nanorods [J].

Park, WI ;

Kim, DH ;

Jung, SW ;

Yi, GC .

APPLIED PHYSICS LETTERS, 2002, 80 (22) :4232-4234

← 1 2 →