All-carbon nanotube diode and solar cell statistically formed from macroscopic network

作者：Nasibulin Albert G^*; Funde Adinath M; Anoshkin Ilya V; Levitsky Igor A

来源：Nano Research, 2015, 8(9): 2800-2809.

DOI：10.1007/s12274-015-0785-z

• all-carbon nanotube solar cell
• Schottky diode
• carbon nanotube diode
• carbon nanotube bundles

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 similar to 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.

• 出版日期2015-9
• 单位香港理工大学