Abstract
Calcium (Ca)-atom-encapsulated single-walled carbon nanotubes (Ca@SWNTs) are successfully formed by an ion irradiation method using Ca plasma. The electrical transport properties of Ca@SWNTs are experimentally investigated under a field-effect transistor configuration in vacuum and air. The conductance of Ca@SWNTs changes markedly compared with that of pristine SWNTs, and Ca@SWNTs exhibit air-stable unipolar n-type semiconductor behavior. This result indicates that Ca atoms are encapsulated in SWNTs and fulfill a crucial role as strong electron donors to SWNTs. A unique feature resembling a p-n junction is also observed in Ca@SWNTs.
| Original language | English |
|---|---|
| Article number | 02BD05 |
| Journal | Japanese journal of applied physics |
| Volume | 49 |
| Issue number | 2 PART 2 |
| DOIs | |
| Publication status | Published - 2010 Dec 1 |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Shimizu, T., Kato, T., Oohara, W., & Hatakeyama, R. (2010). Electrical transport properties of calcium-encapsulated single-walled carbon nanotubes realized using calcium plasma. Japanese journal of applied physics, 49(2 PART 2), [02BD05]. https://doi.org/10.1143/JJAP.49.02BD05