Direct imaging of the alkali metal site in K-doped fullerene peapods

被引：41

作者：

Guan, LH ^{[1
]}

Suenaga, K

Shi, ZJ

Gu, ZN

Iijima, S

机构：

[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan

[2] Peking Univ, Dept Chem, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.94.045502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The structure of K-doped fullerene peapods has been investigated by means of high-resolution transmission electron microscopy and electron energy-loss spectroscopy (EELS). It is proven that the potassium atoms can be doped at the intermolecular sites within C-60 peapods. The EELS spectrum of potassium (K) L edge clearly exhibits the feature of K+ in the doped peapod and consequently suggests n-type doping. These results encourage the realization of a one-dimensional superconducting wire based on the nanotube peapods.

引用

页码：1 / 4

页数：4

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