Nanostructures formed by Ag nanowires

被引:28
作者
Cheng, YH [1 ]
Cheng, SY [1 ]
机构
[1] Ind Technol Res Inst, Mat Res Labs, Hsinchu 31040, Taiwan
关键词
D O I
10.1088/0957-4484/15/1/033
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Silver nanowires are prepared by electroplating into an anodic aluminium oxide (AAO) template. After the AAO template was removed by chemical etching, the surface of Ag nanowires was further modified by pulse DC electroplating. Various Ag nanobranches are grown on the surface of the Ag nanowire. This study discusses the influence of the pulse DC voltage and bias on the surface morphologies of Ag nanowires. The curvature of the nanowire surface is found to be the main factor in the growth of nanobranches. The surface morphology of the nanowire is adjustable by changing its growth rate. Radii of curvatures of the surfaces of approximately 33, 12 and 3 nm are obtained by electroplating at 1, 3 and 4 V DC voltages. respectively. The crystal size of a nanowire determined by x-ray diffraction analysis is almost independent of the growth conditions. Pulse DC electroplating conditions yield different growth rates of the nanobranch and create various surface morphologies of the nanowire. A more highly curved surface has a more localized charge and grows nanobranches faster. Surface roughness dominates the growth of nanobranches from silver nanowire.
引用
收藏
页码:171 / 175
页数:5
相关论文
共 11 条
[1]   THE THEORY OF ION-BEAM POLISHING AND MACHINING [J].
CARTER, G ;
NOBES, MJ ;
KATARDJIEV, IV .
VACUUM, 1993, 44 (3-4) :303-309
[2]   Wrinkling and curvature of laminar and turbulent premixed flames [J].
Haq, MZ ;
Sheppard, CGW ;
Woolley, R ;
Greenhalgh, DA ;
Lockett, RD .
COMBUSTION AND FLAME, 2002, 131 (1-2) :1-15
[3]  
KROLL M, 2001, MATER RES SOC S P, V678, P1620
[4]   Hierarchical self-assembly of metal nanostructures on diblock copolymer scaffolds [J].
Lopes, WA ;
Jaeger, HM .
NATURE, 2001, 414 (6865) :735-738
[5]   TEMPLATE SYNTHESIS OF ELECTRONICALLY CONDUCTIVE POLYMER NANOSTRUCTURES [J].
MARTIN, CR .
ACCOUNTS OF CHEMICAL RESEARCH, 1995, 28 (02) :61-68
[6]   NANOMATERIALS - A MEMBRANE-BASED SYNTHETIC APPROACH [J].
MARTIN, CR .
SCIENCE, 1994, 266 (5193) :1961-1966
[7]  
MAURICE JL, 1994, J MAGN MAT, V184, P1
[8]   Synthesis of highly ordered CdSe nanowire arrays embedded in anodic alumina membrane by electrodeposition in ammonia alkaline solution [J].
Peng, XS ;
Zhang, J ;
Wang, XF ;
Wang, YW ;
Zhao, LX ;
Meng, GW ;
Zhang, LD .
CHEMICAL PHYSICS LETTERS, 2001, 343 (5-6) :470-474
[9]   Magnetic properties of ordered FexAE1-x nanowire arrays embedded in anodic alumina membranes [J].
Wang, YW ;
Meng, GW ;
Liang, CH ;
Wang, GZ ;
Zhang, LD .
CHEMICAL PHYSICS LETTERS, 2001, 339 (3-4) :174-178
[10]   A simple and novel route for the preparation of ZnO nanorods [J].
Xu, CK ;
Xu, GD ;
Liu, YK ;
Wang, GH .
SOLID STATE COMMUNICATIONS, 2002, 122 (3-4) :175-179