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Aligning single-walled carbon nanotubes by means of Langmuir-Blodgett film deposition: Optical, morphological, and photo-electrochemical studies

Journal Article


Abstract


  • An alkoxy-substituted poIy(phenyIene thiophene) is used in order to suspend single-walled carbon nanotubes in an organic solvent. The suspension is spread on the air-water interface of a Langmuir trough and the floating film is characterized by means of Brewster angle microscopy and UV-visible reflection spectroscopy and the compression isotherm is recorded. The polymer/carbon- nanotube blend is transferred onto different substrates using the Langmuir-Blodgett technique. AFM measurements indicate the formation of globular structures for the samples transferred at low surfacepressure values and a tubular morphology for high-pressure-deposited samples. AFM analysis is repeated on a sample exposed to soft X-rays for about S h and a highly organized structure of bundles of carbon nanotubes rises up. Samples with different numbers of layers are transferred onto ITO substrates by means of the Langmuir-Blodgett method and are tested as photocathodes in a photo-electrochemical cell. A Voc of 0.18 V, an Isc of 85.8 mA, FF of 40.0%, and β of (6.23 × 10-3)% are obtained.

Authors


  •   Giancane, Gabriele (external author)
  •   Ruland Palaia, Andres
  •   Sgobba, Vito (external author)
  •   Manno, Daniela (external author)
  •   Serra, Antonio (external author)
  •   Farinola, Gianluca M. (external author)
  •   Omar, Hassan (external author)
  •   Guidi, Dirk M. (external author)
  •   Valli, Ludovico (external author)

Publication Date


  • 2010

Citation


  • Giancane, G., Ruland , A., Sgobba, V., Manno, D., Serra, A., Farinola, G. M., Omar, H., Guidi, D. M. & Valli, L. (2010). Aligning single-walled carbon nanotubes by means of Langmuir-Blodgett film deposition: Optical, morphological, and photo-electrochemical studies. Advanced Functional Materials, 20 (15), 2481-2488.

Scopus Eid


  • 2-s2.0-77955379216

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1779

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 2481

End Page


  • 2488

Volume


  • 20

Issue


  • 15

Place Of Publication


  • Germany

Abstract


  • An alkoxy-substituted poIy(phenyIene thiophene) is used in order to suspend single-walled carbon nanotubes in an organic solvent. The suspension is spread on the air-water interface of a Langmuir trough and the floating film is characterized by means of Brewster angle microscopy and UV-visible reflection spectroscopy and the compression isotherm is recorded. The polymer/carbon- nanotube blend is transferred onto different substrates using the Langmuir-Blodgett technique. AFM measurements indicate the formation of globular structures for the samples transferred at low surfacepressure values and a tubular morphology for high-pressure-deposited samples. AFM analysis is repeated on a sample exposed to soft X-rays for about S h and a highly organized structure of bundles of carbon nanotubes rises up. Samples with different numbers of layers are transferred onto ITO substrates by means of the Langmuir-Blodgett method and are tested as photocathodes in a photo-electrochemical cell. A Voc of 0.18 V, an Isc of 85.8 mA, FF of 40.0%, and β of (6.23 × 10-3)% are obtained.

Authors


  •   Giancane, Gabriele (external author)
  •   Ruland Palaia, Andres
  •   Sgobba, Vito (external author)
  •   Manno, Daniela (external author)
  •   Serra, Antonio (external author)
  •   Farinola, Gianluca M. (external author)
  •   Omar, Hassan (external author)
  •   Guidi, Dirk M. (external author)
  •   Valli, Ludovico (external author)

Publication Date


  • 2010

Citation


  • Giancane, G., Ruland , A., Sgobba, V., Manno, D., Serra, A., Farinola, G. M., Omar, H., Guidi, D. M. & Valli, L. (2010). Aligning single-walled carbon nanotubes by means of Langmuir-Blodgett film deposition: Optical, morphological, and photo-electrochemical studies. Advanced Functional Materials, 20 (15), 2481-2488.

Scopus Eid


  • 2-s2.0-77955379216

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1779

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 2481

End Page


  • 2488

Volume


  • 20

Issue


  • 15

Place Of Publication


  • Germany