Poster De Conférence Année : 2017

PFO sorted s-SWNT networks for optoelectronics

Résumé

The rise of efficient extraction techniques triggered a renewal of interest in semiconducting carbon nanotubes (s-SWNT) research. It represents a great interest for optoelectronics, with outstanding properties in field-effect transistor, and s-SWNT ability to efficiently emit light in the near-IR range. In particular, polyfluorene (PFO) wrapped s‑SWNT (s-SWNT@PFO) display strong photoluminescence, and could be coupled with photonic devices such as microring resonators [1,2] to control photoluminescence linewidth and enhance photoluminescence intensity. The main challenge for using s-SWNT@PFO in optoelectronics lies in the difficulty to establish good electrical contact with a PFO embedded carbon nanotube. We propose to investigate these issues by tuning the amount of PFO wrapping around s-SWNT. A low pressure annealing process is used to selectively remove PFO around s‑SWNT without burning nanotubes themselves (Figure). The resulting s-SWNT@PFO networks are then probed by AFM, Raman spectroscopy, absorption, photoluminescence and electrical experiments.

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Dates et versions

hal-01930046 , version 1 (21-11-2018)

Identifiants

  • HAL Id : hal-01930046 , version 1

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Étienne Gaufrès, Y.L. Tang, Laurent Alvarez, Richard Martel, Nicolas Izard. PFO sorted s-SWNT networks for optoelectronics. GDR-i Graphene and Co 2017, Oct 2017, Aussois, France. ⟨hal-01930046⟩
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