Adv. Search
Journal of Inorganic Materials

Journal of Inorganic Materials >

2010 , Vol. 25 >Issue 7: 687 - 690

DOI: https://doi.org/10.3724/SP.J.1077.2010.00687

Research Paper

Fabrication and Characterization of K0.5Na0.5NbO3 Nanotube Arrays by Sol-Gel AAO Template Method

Expand
  • (Faculty of Physics & Electronic Technology, State Key Lab of Ferro & Piezoelectric Materials and Devices of Hubei Province, Hubei University, Wuhan 430062, China)

Received date: 2009-11-16

  Revised date: 2010-01-15

  Online published: 2010-06-10

Fold

Abstract

K0.5Na0.5NbO3(KNN) nanotube arrays were synthesized by Sol-Gel processing with anodic aluminum oxide templates, using Nb(OC2H5)5, CH3COOK and CH3COONa as the starting materials and 2-methoxyethanol (2-MOE) as solution. The precursor gel was analyzed by thermogravimetric–differential thermal analysis. The phase, morphology and microstructure of KNN nanotube arrays were characterized by X-ray diffraction, scanning electron microscope(SEM) and transmission electron microscope(TEM), respectively. The as-prepared samples are monoclinic phase perovskite structure with the outer-diameter of about 200 nm and wall thickness of about 20 nm. Polarization-electricfield (P-E) response curves of KNN nanotube arrays show that the remanent polarization (Pr) and the coercive electricfield (Ec) are about 1.86  µC/cm2 and 0.68kV/cm, respectively.

Key words： K0.5Na0.5NbO3; perovskite; Sol-Gel; nanotube array; ferroelectric

Cite this article

QIAN Zhe-Li, GU Hao-Shuang, HU Yong-Ming, ZHOU Di, WANG Zhao, XIA Hua-Ting . Fabrication and Characterization of K0.5Na0.5NbO3 Nanotube Arrays by Sol-Gel AAO Template Method[J]. Journal of Inorganic Materials, 2010 , 25(7) : 687 -690 . DOI: 10.3724/SP.J.1077.2010.00687

References

[1]赁敦敏, 肖定全, 朱建国, 等. 铌酸盐系无铅压电陶瓷的研究与进展——无铅压电陶瓷20年专利分析之四. 功能材料, 2003, 34(5): 615-618.
[2]江民红, 陈何欣, 刘心宇, 等(JIANG Min-Hong, et al). 无铅压电陶瓷K0.5Na0.5NbO3-BiFeO3的烧结工艺与压电性能研究. 无机材料学报(Journal of Inorganic Materials), 2009, 24(6): 1178-1182.
[3]Guo Y, Kakimoto K, Ohsato H. Structure and electrical properties of lead-free (Na0.5K0.5) NbO3-BaTiO3 ceramics. Jpn. J. Appl. Phys., 2004, 43(9B): 6662-6666.
[4]Saito Y, Takao H, Tani T, et al. Lead-free piezoelectrics. Nature, 2004, 432(7013): 84-87.
[5]Shirane G, Newhnam R, Pepinski R. Dielectric properties and phase transitions of NaNbO3 and (Na, K) NbO3. Phys. Rev., 1954, 96(3): 581-588.
[6]Karlinsey R. Self-assembled Nb2O5 microcones with tailored crystallinity. J. Mater. Sci., 2006, 41(15): 5017-5020.
[7]Yan C, Xue D. Conversion of ZnO nanorod arrays into ZnO/ZnS nanocable and ZnS nanotube arrays via an in situ chemistry strategy. J. Phys. Chem. B, 2006, 110(51): 25850-25855.
[8]Yan C, Xue D. Electroless deposition of aligned ZnO taper-tubes in a strong acidic medium. Electrochem. Commun., 2007, 9(6): 1247-1251.
[9]Tenne R, Margulis L, Genut M, et al. Polyhedral and cylindrical structures of tungsten disulphide. Nature, 1992, 360(6403): 444-446.
[10]Zhang W X, Wen X G, Yang S H, et al. Single-crystalline scroll-type nanotube arrays of copper hydroxide synthesized at room temperature. Adv. Mater., 2003, 15(10): 822-825.
[11]Steinhart M, Wendorff J H, Greiner A, et al. polymer nanotubes by wetting of ordered porous templates. Science, 2002, 296(5575): 1997.
[12]Hua Z H, Chen R S, Li C L, et al. CoFe2O4 nanowire arrays prepared by template-electrodeposition method and further oxidization. J. Alloys Compd., 2007, 427(1/2): 199-203.
[13]Sui Y C, Gonzalez-Leon J A, Bermudez A, et al. Structure, thermal stability, and deformation of multibranched carbon nanotubes synthesized by CVD in the AAO template. Carbon, 2001, 39(11): 1709-1715.
[14]Tian Y T, Meng G W, Biswas S K, et al. Y-branched Bi nanowires with metal–semiconductor junction behavior. Appl. Phys. Lett., 2004, 85(6): 967-969.
[15]Zhang X Y, Lai C W, Zhao X, et al. Synthesis and ferroelectric properties of multiferroic BiFeO3 nanotube arrays. Appl. Phys. Lett., 2005, 87(14): 143102-1-3.
[16]Tanaka K, Kakimoto K, Ohsato H. Fabrication of highly oriented lead-free (Na,K)NbO3 thin films at low temperature by Sol–Gel process. Journal of Crystal Growth, 2006, 294(2): 209-213.
[17]Ryu J, Choi J J, Hahn B D, et al. Fabrication and ferroelectric properties of highly dense lead-free piezoelectric (K0.5Na0.5)NbO3 thick films by aerosol deposition. Appl. Phys. Lett., 2007, 90(15): 152901-1-3.
[18]Hernandez B A , Chang K S , Scancella M T , et al. Examination of size-induced ferroelectric phase transitions in template synthesized PbTiO3 nanotubes and nanofibers. Chem. Mater., 2005, 17(24): 5909-5919.
[19]Luo Y, Szafraniak I, Zakharov N D, et al. Nanoshell tubes of ferroelectric lead zirconate titanate and barium titanate. Appl. Phys. Lett., 2003, 83(3): 440-442.

Options
Outlines

/

〈 〉