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首页> 外文期刊>Materials Letters >Soluble self-doped single-walled carbon nanotube
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Soluble self-doped single-walled carbon nanotube

机译：可溶性自掺杂单壁碳纳米管

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摘要

Treatment of single-walled carbon nanotube (SWNT) having carboxylic acid chloride groups at the open end, SWNT-(COCl)_n, with polyethyleneimine (PEI) caused amidation reaction between the COCl group and the amine groups of PEI to give functionalized SWNTs. The products were separated into soluble and insoluble parts in chloroform, 1 and 2, respectively. IR data revealed that all the COCl groups reacted with amine groups of PEI to provide 1, whereas unreacted COCl groups remained in 2. 1 was photoluminescent and electrochemically active in the solution. Electron spin resonance (ESR) spectrum of 1 indicated formation of a radical cation on N atoms of PEI. An electric junction, Pt/P3HexTh/1/Hg, where P3HexTh is poly(3-hexylthiphene) which usually shows p-type electrically conducting properties, was fabricated. The junction shows rectification of electric current, and this rectification is attributed to the formation of a p-n junction between P3HexTh and 1. These data supported a view that 1 served as an n-type electrically conducting material. Optical and thermal properties of 1 and 2 were also investigated.
机译：用聚乙烯亚胺（PEI）处理在开口端具有羧酸氯基的单壁碳纳米管（SWNT）SWNT-（COCl）_n引起PEC1的COCl基团和胺基团之间的酰胺化反应，得到官能化的SWNT。将产物分别分成在氯仿中的可溶和不溶部分1和2。红外数据显示，所有的COCl基团都与PEI的胺基反应生成1个，而未反应的COCl基团保留在2个中。1个在溶液中具有光致发光和电化学活性。 1的电子自旋共振（ESR）光谱表明在PEI的N原子上形成了自由基阳离子。制作了电结Pt / P3HexTh / 1 / Hg，其中P3HexTh是通常显示p型导电特性的聚（3-己基噻吩）。该结显示出电流的整流，并且该整流归因于在P3HexTh和1之间形成p-n结。这些数据支持一种观点，即1用作n型导电材料。还研究了1和2的光学和热学性质。

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