采用多孔阳极氧化铝(AAO)作为模板,运用电化学沉积法在模板的微孔中组装金属Ni纳米线,然后用磷铬酸蚀刻表层AAO模板,暴露出规整有序、具有可控长度的Ni纳米线阵列.分别用SEM、TEM与SAED对Ni纳米线阵列进行了表征.研究了蚀刻时间与AAO模板质量的减少及暴露出来的Ni纳米线阵列长度之间的关系.结果表明,磷铬酸是较NaOH溶液更为温和有效的AAO模板蚀刻剂,通过控制模板溶解时间,可以实现对裸露于AAO模板外纳米线长度的精细有效控制.该蚀刻方法普遍适用于以AAO为模板所制得的准一维纳米阵列结构.
参考文献
| [1] | Jo, C;Lee, JI;Jang, Y .Electronic and magnetic properties of ultrathin Fe-Co alloy nanowires[J].Chemistry of Materials,2005(10):2667-2671. |
| [2] | Wang BL.;Wang GH.;Buldum A.;Zhao JJ.;Yin SY. .Novel structures and properties of gold nanowires[J].Physical review letters,2001(10):2046-2049. |
| [3] | Zhang Z T;Blom D A;Gai Z et al.High-Yield solvothermal formation of magnetic Co-Pt alloy nanowires[J].Journal of the American Chemical Society,2003,125(25):7528-7529. |
| [4] | Martin C R .Nanomaterials:A membrane-based synthetic approach[J].Science,1994,266(23):1961-1966. |
| [5] | Zhou Z;Zhao J J;Chen Z F et al.True nanocable assemblies with insulating BN nanotube sheaths and conducting Cu nanowire cores[J].Journal of Physical Chemistry B,2006,110(06):2529-2532. |
| [6] | C. Z. Li;H. X. He;A. Bogozi .Molecular detection based on conductance quantization of nanowires[J].Applied physics letters,2000(10):1333-1335. |
| [7] | Yongqi Liang;Changgua Zhen;Dechun Zou .Preparation of Free-Standing Nanowire Arrays on Conductive Substrates[J].Journal of the American Chemical Society,2004(50):16338-16339. |
| [8] | Melissa S. Sander;Matthew J. Cote;Wei Gu;Brian M. Kile;Carl P. Tripp .Template-Assisted Fabrication of Dense, Aligned Arrays of Titania Nanotubes with Well-Controlled Dimensions on Substrates[J].Advanced Materials,2004(22):2052-2057. |
| [9] | Joo Y;Suh J S .SERS on silver formed in anodic aluminum oxide nanotemplates[J].Bulletin of the Korean Chemical Society,1995,16:808-810. |
| [10] | Yao JL.;Tang J.;Wu DY.;Sun DM.;Xue KH.;Ren B.;Mao BW.;Tian ZQ. .Surface enhanced Raman scattering from transition metal nano-wire array and the theoretical consideration[J].Surface Science: A Journal Devoted to the Physics and Chemistry of Interfaces,2002(1/3):108-116. |
| [11] | D.H.Qin;C.W.Wang;Q.Y.Sun;H.L.Li .The effects of annealing on the structure and magnetic properties of CoNi patterned nanowire arrays[J].Applied physics, A. Materials science & processing,2002(6):761-765. |
| [12] | Hui Pan;Han Sun;Cheekok Foh .Single-crystal growth of metallic nanowires with preferred orientation[J].Nanotechnology,2005(9):1559-1564. |
| [13] | K S SHANKAR;A K RAYCHAUDHURI .Growth of an ordered array of oriented manganite nanowires in alumina templates[J].Nanotechnology,2004(9):1312-1316. |
| [14] | Ounadjela K.;Louail L.;George JM.;Maurice JL.;Piraux L. Dubois S.;Ferre R. .MAGNETIZATION REVERSAL IN COBALT AND NICKEL ELECTRODEPOSITED NANOWIRES[J].Journal of Applied Physics,1997(8 Pt.2b):5455-5457. |
| [15] | Xu C L;Li H;Xue T et al.Fabrication of CoPd alloy nanowire arrays on an anodic aluminum oxide/Ti/Si substrate and their enhanced magnetic properties[J].Scripta Materialia,2006,54:1605-1609. |
| [16] | Pan H;Liu BH;Yi JB;Poh C;Lim S;Ding J;Feng YP;Huan CHA;Lin JY .Growth of singlecrystalline Ni and Co nanowires via electrochemical deposition and their magnetic properties[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,2005(8):3094-3098. |
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