The sublimation growth of AlN fibers: transformations in morphology & fiber direction

被引：18

作者：

Bao, H. Q. ^{[1
]}

Chen, X. L. ^{[1
]}

Li, H. ^{[1
]}

Wang, G. ^{[1
]}

Song, B. ^{[1
]}

Wang, W. J. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2009年 / 94卷 / 01期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

ALUMINUM NITRIDE WHISKERS; FIELD-EMISSION; TEMPERATURE SYNTHESIS; NANOWIRES; CRYSTALS; DEPOSITION; NANOTUBES; STRAIGHT; NANORODS; ALGAN;

D O I：

10.1007/s00339-008-4722-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The growth of AlN fibers using sublimation method was investigated in the temperature range from 1600 degrees C to 2000 degrees C. Large-scale AlN fibers are obtained with diameters from 100 nm to 50 mu m and lengths up to several millimeters. The fiber morphology and growth direction are characterized by X-ray diffraction (XRD), field emission scanning electron microscope (SEM), high-resolution transmission electron microscopy (HRTEM), and Raman scattering. The fibers change from wire-like to prism-like in morphology and increase in diameter as rising temperatures, accompanying a transformation in axial direction from [10 (1) over bar0] to [0001]. The transformation in the growth direction is discussed in terms of AlN structure and supersaturation of AlN gas species. These results provide useful information for controlling the growth of large-scale AlN fibers.

引用

页码：173 / 177

页数：5

共 38 条

[1] Raman analysis of the E1 and A1 quasi-longitudinal optical and quasi-transverse optical modes in wurtzite AlN [J].

Bergman, L ;

Dutta, M ;

Balkas, C ;

Davis, RF ;

Christman, JA ;

Alexson, D ;

Nemanich, RJ .

JOURNAL OF APPLIED PHYSICS, 1999, 85 (07) :3535-3539

[2] Field emission from carbon nanotubes:: the first five years [J].

Bonard, JM ;

Kind, H ;

Stöckli, T ;

Nilsson, LA .

SOLID-STATE ELECTRONICS, 2001, 45 (06) :893-914

[3] Electromechanical coupling coefficient for surface acoustic waves in single-crystal bulk aluminum nitride [J].

Bu, G ;

Ciplys, D ;

Shur, M ;

Schowalter, LJ ;

Schujman, S ;

Gaska, R .

APPLIED PHYSICS LETTERS, 2004, 84 (23) :4611-4613

[4] MORPHOLOGY AND CRYSTALLOGRAPHY OF ALUMINUM NITRIDE WHISKERS [J].

CACERES, PG ;

SCHMID, HK .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1994, 77 (04) :977-983

[5] Synthesis and Raman characteristics of hexagonal AlxGa1-xN alloy nanocrystalline solids through ammonothermal routes [J].

Cao, YG ;

Chen, XL ;

Lan, YC ;

Li, JY ;

Zhang, Y ;

Yang, Z ;

Liang, JK .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2001, 72 (01) :125-127

[6]

Chen XL, 2000, ADV MATER, V12, P1432, DOI 10.1002/1521-4095(200010)12:19<1432::AID-ADMA1432>3.0.CO

[7]

2-X

[8] Effect of deposition angle on fiber axis tilt in sputtered aluminum nitride and pure metal films [J].

Dellas, N. S. ;

Harper, J. M. E. .

THIN SOLID FILMS, 2006, 515 (04) :1647-1650

[9] Preparation and characterization of straight and zigzag AIN nanowires [J].

Duan, JH ;

Yang, SG ;

Liu, HW ;

Gong, JF ;

Huang, HB ;

Zhao, XN ;

Zhang, R ;

Du, YW .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (09) :3701-3703

[10] Approaches to seeded PVT growth of AIN crystals [J].

Epelbaum, B. M. ;

Bickermann, M. ;

Winnacker, A. .

JOURNAL OF CRYSTAL GROWTH, 2005, 275 (1-2) :E479-E484

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