Surfactant-free water-processable photoconductive all-carbon composite

Vincent C. Tung, Jen Hsien Huang, Ian Tevis, Franklin Kim, Jaemyung Kim, Chih Wei Chu, Samuel I Stupp, Jiaxing Huang

Research output: Contribution to journalArticle

156 Citations (Scopus)

Abstract

Heterojunctions between different graphitic nanostructures, including fullerenes, carbon nanotubes and graphene-based sheets, have attracted significant interest for light to electrical energy conversion. Because of their poor solubility, fabrication of such all-carbon nanocomposites typically involves covalently linking the individual constituents or the extensive surface functionalization to improve their solvent processability for mixing. However, such strategies often deteriorate or contaminate the functional carbon surfaces. Here we report that fullerenes, pristine single walled carbon nanotubes, and graphene oxide sheets can be conveniently coassembled in water to yield a stable colloidal dispersion for thin film processing. After thermal reduction of graphene oxide, a solvent-resistant photoconductive hybrid of fullerene-nanotube-graphene was obtained with on-off ratio of nearly 6 orders of magnitude. Photovoltaic devices made with the all-carbon hybrid as the active layer and an additional fullerene block layer showed unprecedented photovoltaic responses among all known all-carbon-based materials with an open circuit voltage of 0.59 V and a power conversion efficiency of 0.21%. The ease of making such surfactant-free, water-processed, carbon thin films could lead to their wide applications in organic optoelectronic devices.

Original languageEnglish
Pages (from-to)4940-4947
Number of pages8
JournalJournal of the American Chemical Society
Volume133
Issue number13
DOIs
Publication statusPublished - Apr 6 2011

Fingerprint

Fullerenes
Graphite
Surface-Active Agents
Graphene
Surface active agents
Carbon
Water
Composite materials
Carbon Nanotubes
Oxides
Thin films
Carbon films
Open circuit voltage
Single-walled carbon nanotubes (SWCN)
Nanocomposites
Nanotubes
Equipment and Supplies
Energy conversion
Optoelectronic devices
Nanostructures

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Tung, V. C., Huang, J. H., Tevis, I., Kim, F., Kim, J., Chu, C. W., ... Huang, J. (2011). Surfactant-free water-processable photoconductive all-carbon composite. Journal of the American Chemical Society, 133(13), 4940-4947. https://doi.org/10.1021/ja1103734

Surfactant-free water-processable photoconductive all-carbon composite. / Tung, Vincent C.; Huang, Jen Hsien; Tevis, Ian; Kim, Franklin; Kim, Jaemyung; Chu, Chih Wei; Stupp, Samuel I; Huang, Jiaxing.

In: Journal of the American Chemical Society, Vol. 133, No. 13, 06.04.2011, p. 4940-4947.

Research output: Contribution to journalArticle

Tung, VC, Huang, JH, Tevis, I, Kim, F, Kim, J, Chu, CW, Stupp, SI & Huang, J 2011, 'Surfactant-free water-processable photoconductive all-carbon composite', Journal of the American Chemical Society, vol. 133, no. 13, pp. 4940-4947. https://doi.org/10.1021/ja1103734
Tung, Vincent C. ; Huang, Jen Hsien ; Tevis, Ian ; Kim, Franklin ; Kim, Jaemyung ; Chu, Chih Wei ; Stupp, Samuel I ; Huang, Jiaxing. / Surfactant-free water-processable photoconductive all-carbon composite. In: Journal of the American Chemical Society. 2011 ; Vol. 133, No. 13. pp. 4940-4947.
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