Rational growth of branched and hyperbranched nanowire structures

Nano Letters

Volumn 4, Issue 5, 2004, Pages 871-874

  Wang, Deli ^a   Qian, Fang ^a   Yang, Chen ^a   Zhong, Zhaohui ^a   Lieber, Charles M ^a  

^a HARVARD UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GALLIUM; NITRIC ACID DERIVATIVE; SILICON;

ARTICLE; CATALYST; CRYSTAL STRUCTURE; DENSITY; ELECTRONICS; LIQUID; NANOPARTICLE; NANOTECHNOLOGY; SCANNING ELECTRON MICROSCOPY; SOLID; STRUCTURE ANALYSIS; SYNTHESIS; THREE DIMENSIONAL IMAGING; VAPOR;

EID: 2642585470     PISSN: 15306984     EISSN: None     Source Type: Journal    
DOI: 10.1021/nl049728u     Document Type: Article

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28. 6, and 10 seem Ar for 20 min, with the growth pressure maintained at 40 Torr. SiNW branches were grown in a similar way following the deposition of gold nanoclusters onto the nanowire backbone from ethanol solution. The branches were prepared using 10, 20, 30, or 40 nm diameter gold nanoclusters with the diameter equal to or smaller than the diameter used to grow the preceding nanowire (i.e., backbone or first generation branch). Ethanol suspensions of the branched and hyperbranched SiNWs were prepared by gentle sonication of the growth substrates in ethanol. These solutions were deposited onto Si substrates for SEM studies.
29. The angles determined from these SEM images can have substantial uncertainty since the orientation of the backbone and branch relative to the image plane is not known. Accurate angle measurements can, however, be made from lattice-resolved TEM images.
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