Trion formation and recombination dynamics in hole-doped single-walled carbon nanotubes

Taishi Nishihara, Yasuhiro Yamada, Makoto Okano, Yoshihiko Kanemitsu

研究成果: Article査読

24 被引用数 (Scopus)

抄録

We studied the trion (charged exciton) formation and recombination dynamics in hole-doped (7,5) single-walled carbon nanotubes (SWCNTs) by performing femtosecond transient absorption spectroscopy. The doping of SWCNTs with holes leads to a fast decay component from an exciton to a trion, and the trion decays with a lifetime of a few picoseconds. The experimental results can be explained by a quantized model accounting for the dark exciton and trion states and the hole number distribution in a SWCNT. Our findings show that the optical responses of SWCNTs can be manipulated by doping of SWCNTs with a small number of holes.

本文言語English
論文番号023101
ジャーナルApplied Physics Letters
103
2
DOI
出版ステータスPublished - 2013 7 8
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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