Silver selenide nanowires by electrodeposition

被引:17
作者
Chen, RZ [1 ]
Xu, DS [1 ]
Guo, GL [1 ]
Gui, LL [1 ]
机构
[1] Peking Univ, State Key Lab Struct Chem Unstable & Stable Speci, Inst Phys Chem, Beijing 100871, Peoples R China
关键词
D O I
10.1149/1.1540065
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Silver selenide nanowires were synthesized by potentiostatic electrodeposition into porous anodic alumina membranes from an aqueous acid electrolyte containing silver ion complexed with SCN- and selenium dioxide at room temperature. Electron microscopy results showed that the lengths, diameters, and growth directions of the nanowires are quite uniform. X-ray energy dispersion analysis indicated that the nanowires are composed of Ag and Se with an atomic ratio of Ag/Se = 2.08, which is close to stoichiometric Ag2Se. X-ray diffraction patterns showed that the as-deposited nanowires are polycrystalline orthorhombic beta-Ag2Se, and the annealed nanowires are highly [002] oriented. Furthermore, the selected area electron diffraction pattern and the high-resolution transmission electron microscopy image demonstrated that after annealing the nanowires have a uniform crystalline structure of orthorhombic beta-Ag2Se, which are (002) oriented along the direction vertical to the wire axes. (C) 2003 The Electrochemical Society.
引用
收藏
页码:G183 / G186
页数:4
相关论文
共 30 条
[21]  
SKYLLAS-KAZACOS M, 1980, J ELECTROCHEM SOC, V127, P869, DOI 10.1149/1.2129772
[22]   HYSTERESIS OF THE PHASE-TRANSFORMATION DETECTED BY GALVANOMAGNETIC MEASUREMENTS OF AG2SE LAYERS [J].
SOMOGYI, K ;
SAFRAN, G .
JOURNAL OF APPLIED PHYSICS, 1995, 78 (11) :6855-6857
[23]   Electrochemical preparation of CdSe nanowire arrays [J].
Xu, DS ;
Shi, XS ;
Guo, GL ;
Gui, LL ;
Tang, YQ .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (21) :5061-5063
[24]   Preparation of II-VI group semiconductor nanowire arrays by dc electrochemical deposition in porous aluminum oxide templates [J].
Xu, DS ;
Chen, DP ;
Xu, YJ ;
Shi, XS ;
Guo, GL ;
Gui, LL ;
Tang, YQ .
PURE AND APPLIED CHEMISTRY, 2000, 72 (1-2) :127-135
[25]  
Xu DS, 2000, ADV MATER, V12, P520, DOI 10.1002/(SICI)1521-4095(200004)12:7<520::AID-ADMA520>3.0.CO
[26]  
2-#
[27]   Preparation and characterization of CdS nanowire arrays by dc electrodeposit in porous anodic aluminum oxide templates [J].
Xu, DS ;
Xu, YJ ;
Chen, DP ;
Guo, GL ;
Gui, LL ;
Tang, YQ .
CHEMICAL PHYSICS LETTERS, 2000, 325 (04) :340-344
[28]   Large magnetoresistance in non-magnetic silver chalcogenides [J].
Xu, R ;
Husmann, A ;
Rosenbaum, TF ;
Saboungi, ML ;
Enderby, JE ;
Littlewood, PB .
NATURE, 1997, 390 (6655) :57-60
[29]   Nanoscale silicon wires synthesized using simple physical evaporation [J].
Yu, DP ;
Bai, ZG ;
Ding, Y ;
Hang, QL ;
Zhang, HZ ;
Wang, JJ ;
Zou, YH ;
Qian, W ;
Xiong, GC ;
Zhou, HT ;
Feng, SQ .
APPLIED PHYSICS LETTERS, 1998, 72 (26) :3458-3460
[30]   Magnetotransport investigations of ultrafine single-crystalline bismuth nanowire arrays [J].
Zhang, ZB ;
Sun, XZ ;
Dresselhaus, MS ;
Ying, JY ;
Heremans, JP .
APPLIED PHYSICS LETTERS, 1998, 73 (11) :1589-1591