Time dependant evolution of silver nanodendrites

Abstract We report the synthesis of silver nanodendrites, with an elongated central backbone and distinguished branches. This method involves the reduction of silver nitrate with formamide using polyvinyl pyrrolidone as the surfactant. The evolution of the dendritic nanostructures after 30 days was due to the variation of the concentration of the reactants. At low PVP concentration isotropic silver nanoparticles are visible in the transmission electron microscopy (TEM) images. As the concentration is increased anisotropic particles are observed with the appearance of dendrites at the highest concentration. The morphological evolution is confirmed by the optical measurements.

[1]  Hongyuan Chen,et al.  Electrochemical preparation of silver dendrites in the presence of DNA , 2001 .

[2]  F. Shi,et al.  Combining layer-by-layer assembly with electrodeposition of silver aggregates for fabricating superhydrophobic surfaces. , 2005, Langmuir : the ACS journal of surfaces and colloids.

[3]  O. Palchik,et al.  Shape-Controlled Synthesis of Silver Nanoparticles by Pulse Sonoelectrochemical Methods , 2000 .

[4]  David R. Smith,et al.  Shape effects in plasmon resonance of individual colloidal silver nanoparticles , 2002 .

[5]  H. Imai,et al.  Morphological evolution of silver crystals produced by reduction with ascorbic acid , 2002 .

[6]  E. Wang,et al.  Surfactant-assisted electrochemical method for dendritic silver nanocrystals with advanced structure , 2005 .

[7]  J. Lakowicz,et al.  Luminescent Blinking from Silver Nanostructures. , 2003, The journal of physical chemistry. B.

[8]  James H. Adair,et al.  Synthesis of Nanosized Silver Platelets in Octylamine-Water Bilayer Systems , 2002 .

[9]  Chad A Mirkin,et al.  Directed Assembly of Periodic Materials from Protein and Oligonucleotide-Modified Nanoparticle Building Blocks. , 2001, Angewandte Chemie.

[10]  L. Liz‐Marzán,et al.  Binary cooperative complementary nanoscale interfacial materials. Reduction of silver nanoparticles in DMF. Formation of monolayers and stable colloids , 2000 .

[11]  M. Tsuji,et al.  Effects of chain length of polyvinylpyrrolidone for the synthesis of silver nanostructures by a microwave-polyol method , 2006 .

[12]  H. Stanley,et al.  Tip splitting without interfacial tension and dendritic growth patterns arising from molecular anisotropy , 1986, Nature.

[13]  P. S. Mdluli,et al.  An improved N,N-dimethylformamide and polyvinyl pyrrolidone approach for the synthesis of long silver nanowires , 2009 .

[14]  R. Renneberg,et al.  Dendritic nanostructures of silver: facile synthesis, structural characterizations, and sensing applications. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[15]  L. Bao,et al.  Self-assembled synthesis of SERS-active silver dendrites and photoluminescence properties of a thin porous silicon layer , 2008 .

[16]  H. Xin,et al.  Fractal and Dendritic Growth of Metallic Ag Aggregated from Different Kinds of γ-Irradiated Solutions , 2000 .

[17]  Younan Xia,et al.  Polyol Synthesis of Uniform Silver Nanowires: A Plausible Growth Mechanism and the Supporting Evidence , 2003 .

[18]  Zhiyu Jiang,et al.  Synthesis of highly crystalline silver dendrites microscale nanostructures by electrodeposition , 2006 .

[19]  Yi-jian Jiang,et al.  Spectroscopy property of Ag nanoparticles. , 2006, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

[20]  Yi Xie,et al.  Controlling synthesis of silver nanowires and dendrites in mixed surfactant solutions. , 2003, Journal of Colloid and Interface Science.

[21]  Daihua Zhang,et al.  In2O3 nanowires as chemical sensors , 2003 .

[22]  Jae-Young Yu,et al.  Silicon nanowire devices , 2000 .

[23]  L. Sander,et al.  Diffusion-limited aggregation, a kinetic critical phenomenon , 1981 .

[24]  Shuhong Yu,et al.  A Novel Ultraviolet Irradiation Photoreduction Technique for the Preparation of Single‐Crystal Ag Nanorods and Ag Dendrites , 1999 .

[25]  Zhiyu Wang,et al.  A general strategy for synthesis of silver dendrites by galvanic displacement under hydrothermal conditions , 2008 .

[26]  Jie Yin,et al.  Formation of silver dendrites under microwave irradiation , 2003 .