All-carbon nanotube diode and solar cell statistically formed from macroscopic network
Schottky diodes and solar cells are statistically created in the contact area between two macroscopic films of single-walled carbon nanotubes (SWNTs) at the junction of semiconducting and quasi-metallic bundles consisting of several high quality tubes. The n-doping of one of the films allows for photovoltaic action, owing to an increase in the built-in potential at the bundle-to-bundle interface. Statistical analysis demonstrates that the Schottky barrier device contributes significantly to the I-V characteristics, compared to the p-n diode. The upper limit of photovoltaic conversion efficiency has been estimated at ∼20%, demonstrating that the light energy conversion is very efficient for such a unique solar cell. While there have been multiple studies on rectifying SWNT diodes in the nanoscale environment, this is the first report of a macroscopic all-carbon nanotube diode and solar cell.
Keywordsall-carbon nanotube solar cell Schottky diode carbon nanotube diode carbon nanotube bundles
Unable to display preview. Download preview PDF.
- Levitsky, I. A.; Euler, W. B.; Karachevtsev, V. A. Light energy conversion at carbon nanotubes-organic and inorganic interfaces: Photovoltaics, photodetectors and bolometers. In Photophysics of Carbon Nanotubes Interfaced with Organic and Inorganic Materials.; Springer: London, 2012; pp 1–68.CrossRefGoogle Scholar
- Massuyeay, F; Zhao, Y. C.; El Mel, A. A.; Yaya, A.; Geshier, F.; Gautron, E.; Lefrant, S.; Mevelec, J. Y.; Ewels, C.; Hsu, C. S. et al. Improve photoconductive properties of composite nanofibers based on aligned conjugated polymers and single-walled carbon nanotubes. Nano Res. 2013, 6, 149–158.CrossRefGoogle Scholar
- Kaskela, A.; Nasibulin, A. G.; Timmermans, M. Y.; Aitchison, B.; Papadimitratos, A.; Tian, Y.; Zhu, Z.; Jiang, H.; Brown, D. P.; Zakhidov, A. et al. Aerosol-synthesized SWCNT networks with tunable conductivity and transparency by a dry transfer technique. Nano Lett. 2010, 10, 4349–4355.CrossRefGoogle Scholar
- Ham, M. H.; Paulus, G. L. C.; Lee, C. Y.; Song, C.; Kalantar-zadeh, K.; Choi, W.; Han, J. H.; Strano, M. S. Evidence for high-efficiency exciton dissociation at polymer/single-walled carbon nanotube interfaces in planar nano-heterojunction photovoltaics. ACS Nano 2010, 4, 6251–6259.CrossRefGoogle Scholar