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National Chung Hsing University Institutional Repository - NCHUIR > 理學院 > 奈米科學研究所 > 依資料類型分類 > 期刊論文 >  Coil-in-Coil Carbon Nanocods: 11 Gram-Scale Synthesis, Single Nanocod Electrical Properties, and Electrical Contact Improvement

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/132513

標題: Coil-in-Coil Carbon Nanocods: 11 Gram-Scale Synthesis, Single Nanocod Electrical Properties, and Electrical Contact Improvement
作者: Tang, N.J.;Kuo, W.;Jeng, C.C.;Wang, L.Y.;Lin, K.J.;Du, Y.W.
郭華丞;鄭建宗
關鍵字: carbon nanocoils;coiled structures;catalytic growth;electrical;property;electrical contact improvement;microwave-absorption properties;field-effect transistors;universal;crossover;nanotubes;fragmentation;performance
日期: 2010
Issue Date: 2012-12-07 17:02:26 (UTC+8)
關連: Acs Nano, Volume 4, Issue 2, Page(s) 781-788.
摘要: Coil-in-coil carbon nanocoils (CNCs) were synthesized by means of acetylene decomposition using nickel nanoparticles as catalysts. The investigations revealed that there are often several CNCs self-assembled in one nanospring. The yield of coil-in-coil CNCs was high up to 11 g in each run at the decomposition temperature of 450 degrees C. CNC nanodevices were fabricated for systematical examinations of charge conduction in the single CNC and in the electrical contacts. A focused laser beam of about 70 mu m in diameter was applied for selective annealing CNC nanodevices so as to improve the electrical contacts to the CNC. Our study showed that the selective focused laser annealing technique is an effective route to improve the electrical contacts to the nanodevice. Temperature-dependent CNC resistances are analyzed with the Mott-variable range hopping (VRH) and Efros-Shkiovskii.VRH model, revealing electron hopping conduction in the disordered CNCs with a characteristic length of about 5-50 nm.
Relation: Acs Nano
Appears in Collections:[依資料類型分類] 期刊論文
[依教師分類] 郭華丞
[依教師分類] 鄭建宗
[依教師分類] 郭華丞
[依教師分類] 鄭建宗
[依教師分類] 郭華丞
[依教師分類] 鄭建宗
[依教師分類] 郭華丞

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