ZnO/cubic (Mg,Zn)O radial nanowire heterostructures

被引：17

作者：

Heo, YW

Kaufman, M

Pruessner, K

Siebein, KN

Norton, DP

Ren, F

机构：

[1] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA

[2] Univ Florida, Dept Chem Engn, Gainesville, FL 32611 USA

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2005年 / 80卷 / 02期

关键词：

D O I：

10.1007/s00339-004-2667-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The formation and properties of radial heteroepitaxial ZnO/(Mg,Zn)O nanowires is reported in which the (Mg,Zn)O is cubic. Synthesis is achieved via a catalyst-driven molecular beam epitaxy technique. The nanowires were grown on Ag-coated Si substrates at growth temperatures ranging from T-g = 300 to 500 degreesC, using Zn, Mg, and O-3/O-2 as the reactive flux. Structural and compositional analyses indicate that the core of the nanowire is ZnO possessing the hexagonal wurtzite structure, with the (Mg,Zn)O sheath assuming the cubic rock salt structure. Since (Mg,Zn)O has a larger band-gap energy (up to 7.8 eV) than that of ZnO (3.37 eV), these radial heterostruclure nanorods provide an interesting system for quantum confinement and one-dimensional nanoscale device studies.

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页码：263 / 266

页数：4

相关论文

共 21 条

[1] One-dimensional heterostructures in semiconductor nanowhiskers [J].

Björk, MT ;

Ohlsson, BJ ;

Sass, T ;

Persson, AI ;

Thelander, C ;

Magnusson, MH ;

Deppert, K ;

Wallenberg, LR ;

Samuelson, L .

APPLIED PHYSICS LETTERS, 2002, 80 (06) :1058-1060

[2] Nanowire nanosensors for highly sensitive and selective detection of biological and chemical species [J].

Cui, Y ;

Wei, QQ ;

Park, HK ;

Lieber, CM .

SCIENCE, 2001, 293 (5533) :1289-1292

[3] Growth of nanowire superlattice structures for nanoscale photonics and electronics [J].

Gudiksen, MS ;

Lauhon, LJ ;

Wang, J ;

Smith, DC ;

Lieber, CM .

NATURE, 2002, 415 (6872) :617-620

[4] InAs nanowires and whiskers grown by reaction of indium with GaAs [J].

He, MQ ;

Fahmi, MME ;

Mohammad, SN ;

Jacobs, RN ;

Salamanca-Riba, L ;

Felt, F ;

Jah, M ;

Sharma, A ;

Lakins, D .

APPLIED PHYSICS LETTERS, 2003, 82 (21) :3749-3751

[5] Site-specific growth of Zno nanorods using catalysis-driven molecular-beam epitaxy [J].

Heo, YW ;

Varadarajan, V ;

Kaufman, M ;

Kim, K ;

Norton, DP ;

Ren, F ;

Fleming, PH .

APPLIED PHYSICS LETTERS, 2002, 81 (16) :3046-3048

[6]

HEO YW, UNPUB APPL PHYS LETT

[7] Ballistic carbon nanotube field-effect transistors [J].

Javey, A ;

Guo, J ;

Wang, Q ;

Lundstrom, M ;

Dai, HJ .

NATURE, 2003, 424 (6949) :654-657

[8] Epitaxial core-shell and core-multishell nanowire heterostructures [J].

Lauhon, LJ ;

Gudiksen, MS ;

Wang, CL ;

Lieber, CM .

NATURE, 2002, 420 (6911) :57-61

[9] Field emission from well-aligned zinc oxide nanowires grown at low temperature [J].

Lee, CJ ;

Lee, TJ ;

Lyu, SC ;

Zhang, Y ;

Ruh, H ;

Lee, HJ .

APPLIED PHYSICS LETTERS, 2002, 81 (19) :3648-3650

[10] Recent advances in ZnO materials and devices [J].

Look, DC .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2001, 80 (1-3) :383-387