Diameter selective doping of single wall carbon nanotubes

被引：82

作者：

Kukovecz, A

Pichler, T

Pfeiffer, R

Kramberger, C

Kuzmany, H

机构：

[1] Univ Vienna, Inst Mat Phys, A-1090 Vienna, Austria

[2] Inst Festkorper & Werkstofforsch, Dresden, Germany

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2003年 / 5卷 / 03期

关键词：

D O I：

10.1039/b211509c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Single wall carbon nanotubes (SWCNTs) synthesized by the recently developed HiPco(R) method differ from those obtained by other techniques because their diameter distribution is broader and is centered at a smaller value. Therefore, HiPco(R) samples contain an unusual wide selection of different nanotubes. Combining this feature with different dopant molecule sizes makes it possible to study a special, diameter selective intercalation phenomenon. Here we present a comparative resonant Raman spectroscopic study on the n-type (K) and p-type (FeCl3) doping of a HiPco(R) and a laser ablation grown SWCNT sample. Diameter selectivity is observed in the former but not in the latter case. We suggest that the solvability of dopands is diameter dependent with a minimum in the range d = 0.9-1.2 nm.

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页码：582 / 587

页数：6

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