期刊
PHYSICAL REVIEW LETTERS
卷 94, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.94.247401
关键词
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Photoluminescence (PL) from single-walled carbon nanotubes suspended in free space is shown to persist to high temperatures, at least to 425 degrees C. A new transition is identified, shifting the optical band gap. This transition is abrupt, is hysteretic, depends simply on the PL emission energy, and is affected by the gas atmosphere. A model is proposed to explain the transition, connecting changes in the PL to the environment.
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