Preparation of VO2 nanowires and their electric characterization

被引：63

作者：

Wu, XC ^{[1
]}

Tao, YR

Lin, D

Wang, ZH

Zheng, H

机构：

[1] Nanjing Univ, State Key Lab Coordinat Chem, Lab Mesoscop Mat Sci, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Dept Chem, Nanjing 210093, Peoples R China

[3] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2005年 / 40卷 / 02期

关键词：

nanostructures; X-ray diffraction; electrical properties;

D O I：

10.1016/j.materresbull.2004.10.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Large-scale VO2 nanowires have been synthesized by two-step method. First, we have been obtained (NH4)(0.5)V2O5 nanowire precursors by hydrothermal treatment of ammonium metavanadate solution at 170 degreesC. Secondly, the precursors have been sealed in quartz tube in vacuum and annealed to form VO2 nanowires at 570 degreesC. Scanning electron microscope and transmission electron microscope analysis show, that the nanowires have self-assembling nanostructure with the diameter of about 80-200 nm, length up to125 mum. Electrical transport, measurements show that it is semiconductor with conduction activate energy of 0.128 eV. A metal semiconductor transition can be observed around 341 K. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：315 / 321

页数：7

共 28 条

[21] INTERCALATED VANADYL VANADATE (V(IV)O)[V(V)O4]CENTER-DOT-0.5[C3N2H12] - HYDROTHERMAL SYNTHESIS, CRYSTAL-STRUCTURE, AND STRUCTURAL CORRELATIONS WITH V2O5 AND OTHER VANADYL COMPOUNDS [J].

RIOU, D ;

FEREY, G .

JOURNAL OF SOLID STATE CHEMISTRY, 1995, 120 (01) :137-145

[22] Vanadium oxide nanotubes -: A new nanostructured redox-active material for the electrochemical insertion of lithium [J].

Spahr, ME ;

Stoschitzki-Bitterli, P ;

Nesper, R ;

Haas, O ;

Novák, P .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (08) :2780-2783

[23] Individual single-wall carbon nanotubes as quantum wires [J].

Tans, SJ ;

Devoret, MH ;

Dai, HJ ;

Thess, A ;

Smalley, RE ;

Geerligs, LJ ;

Dekker, C .

NATURE, 1997, 386 (6624) :474-477

[24] Structure of redox intercalated (NH4)0.5V2O5•mH2O xerogel using the pair distribution function technique [J].

Trikalitis, PN ;

Petkov, V ;

Kanatzidis, MG .

CHEMISTRY OF MATERIALS, 2003, 15 (17) :3337-3342

[25] STRUCTURE AND REACTIVITY OF OXOVANADATE ANIONS IN LAYERED LITHIUM ALUMINATE MATERIALS [J].

TWU, J ;

DUTTA, PK .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (23) :7863-7868

[26] Raman spectroscopic studies of the thermal decomposition mechanism of ammonium metavanadate [J].

Twu, J ;

Shih, CF ;

Guo, TH ;

Chen, KH .

JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (11) :2273-2277

[27] Synthesis and characterization of self-assembling (NH4)0.5V2O5 nanowires [J].

Wu, XC ;

Tao, YR ;

Dong, L ;

Hong, JM .

JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (05) :901-904

[28] Structural chemistry of vanadium oxides with open frameworks [J].

Zavalij, PY ;

Whittingham, MS .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1999, 55 :627-663

← 1 2 3 →