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Cold exciton electroluminescence from air-suspended carbon nanotube split-gate devices

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 نشر من قبل Yuichiro K. Kato
 تاريخ النشر 2017
  مجال البحث فيزياء
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Electroluminescence from individual carbon nanotubes within split-gate devices is investigated. By characterizing the air-suspended nanotubes with photoluminescence spectroscopy, chirality is identified and electroluminescence peaks are assigned. We observe electroluminescence linewidth comparable to photoluminescence, indicating negligible heating and state-mixing effects. Split-gate and bias voltage dependences are consistent with emission from an electrostatically formed $pn$-junction.



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