Hybrid carbon nanotube networks as efficient hole extraction layers for organic photovoltaics

G. Dinesha M R Dabera, K. D G Imalka Jayawardena, M. R Ranga Prabhath, Iskandar Yahya, Y. Yuan Tan, N. Aamina Nismy, Hidetsugu Shiozawa, Markus Sauer, G. Ruiz-Soria, Paola Ayala, Vlad Stolojan, A. A Damitha T Adikaari, Peter D. Jarowski, Thomas Pichler, S. Ravi P Silva

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

Transparent, highly percolated networks of regioregular poly(3-hexylthiophene) (rr-P3HT)-wrapped semiconducting single-walled carbon nanotubes (s-SWNTs) are deposited, and the charge transfer processes of these nanohybrids are studied using spectroscopic and electrical measurements. The data disclose hole doping of s-SWNTs by the polymer, challenging the prevalent electron-doping hypothesis. Through controlled fabrication, high- to low-density nanohybrid networks are achieved, with low-density hybrid carbon nanotube networks tested as hole transport layers (HTLs) for bulk heterojunction (BHJ) organic photovoltaics (OPV). OPVs incorporating these rr-P3HT/s-SWNT networks as the HTL demonstrate the best large area (70 mm2) carbon nanotube incorporated organic solar cells to date with a power conversion efficiency of 7.6%. This signifies the strong capability of nanohybrids as an efficient hole extraction layer, and we believe that dense nanohybrid networks have the potential to replace expensive and material scarce inorganic transparent electrodes in large area electronics toward the realization of low-cost flexible electronics.

Original languageEnglish
Pages (from-to)556-565
Number of pages10
JournalACS Nano
Volume7
Issue number1
DOIs
Publication statusPublished - 22 Jan 2013
Externally publishedYes

Fingerprint

Carbon Nanotubes
Single-walled carbon nanotubes (SWCN)
Carbon nanotubes
carbon nanotubes
Doping (additives)
Flexible electronics
Conversion efficiency
Heterojunctions
Charge transfer
Polymers
Electronic equipment
inorganic materials
Fabrication
Electrodes
electronics
Electrons
electrical measurement
heterojunctions
solar cells
charge transfer

Keywords

  • carbon nanotubes
  • hole transport layer
  • nanohybrids
  • organic photovoltaics
  • rr-P3HT/s-SWNT

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Dabera, G. D. M. R., Jayawardena, K. D. G. I., Prabhath, M. R. R., Yahya, I., Tan, Y. Y., Nismy, N. A., ... Silva, S. R. P. (2013). Hybrid carbon nanotube networks as efficient hole extraction layers for organic photovoltaics. ACS Nano, 7(1), 556-565. https://doi.org/10.1021/nn304705t

Hybrid carbon nanotube networks as efficient hole extraction layers for organic photovoltaics. / Dabera, G. Dinesha M R; Jayawardena, K. D G Imalka; Prabhath, M. R Ranga; Yahya, Iskandar; Tan, Y. Yuan; Nismy, N. Aamina; Shiozawa, Hidetsugu; Sauer, Markus; Ruiz-Soria, G.; Ayala, Paola; Stolojan, Vlad; Adikaari, A. A Damitha T; Jarowski, Peter D.; Pichler, Thomas; Silva, S. Ravi P.

In: ACS Nano, Vol. 7, No. 1, 22.01.2013, p. 556-565.

Research output: Contribution to journalArticle

Dabera, GDMR, Jayawardena, KDGI, Prabhath, MRR, Yahya, I, Tan, YY, Nismy, NA, Shiozawa, H, Sauer, M, Ruiz-Soria, G, Ayala, P, Stolojan, V, Adikaari, AADT, Jarowski, PD, Pichler, T & Silva, SRP 2013, 'Hybrid carbon nanotube networks as efficient hole extraction layers for organic photovoltaics', ACS Nano, vol. 7, no. 1, pp. 556-565. https://doi.org/10.1021/nn304705t
Dabera GDMR, Jayawardena KDGI, Prabhath MRR, Yahya I, Tan YY, Nismy NA et al. Hybrid carbon nanotube networks as efficient hole extraction layers for organic photovoltaics. ACS Nano. 2013 Jan 22;7(1):556-565. https://doi.org/10.1021/nn304705t
Dabera, G. Dinesha M R ; Jayawardena, K. D G Imalka ; Prabhath, M. R Ranga ; Yahya, Iskandar ; Tan, Y. Yuan ; Nismy, N. Aamina ; Shiozawa, Hidetsugu ; Sauer, Markus ; Ruiz-Soria, G. ; Ayala, Paola ; Stolojan, Vlad ; Adikaari, A. A Damitha T ; Jarowski, Peter D. ; Pichler, Thomas ; Silva, S. Ravi P. / Hybrid carbon nanotube networks as efficient hole extraction layers for organic photovoltaics. In: ACS Nano. 2013 ; Vol. 7, No. 1. pp. 556-565.
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