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Related Experiment Video

Updated: May 18, 2026

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells
14:37

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells

Published on: November 5, 2014

Nanocarbon-based photovoltaics.

Marco Bernardi1, Jessica Lohrman, Priyank V Kumar

  • 1Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, USA.

ACS Nano
|September 8, 2012
PubMed
Summary
This summary is machine-generated.

New carbon nanomaterial solar cells offer enhanced photostability and efficiency. These earth-abundant materials present a promising, cost-effective alternative for future photovoltaic technologies.

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Last Updated: May 18, 2026

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Nanotechnology

Background:

  • Carbon materials offer advantages for solar cells, including abundance, high optical absorption, and stability.
  • Existing conjugated polymer solar cells are solution-processable and tunable but can suffer from photodegradation.

Purpose of the Study:

  • To develop novel solar cells utilizing solely carbon nanomaterials for enhanced photostability and efficiency.
  • To optimize the active layer composition for carbon-based photovoltaic devices.

Main Methods:

  • Utilized ab initio density functional theory calculations to predict band alignment and Schottky barriers.
  • Fabricated solar cells with active layers composed of PC(70)BM fullerene, semiconducting single-walled carbon nanotubes, and reduced graphene oxide.

Main Results:

  • Achieved a record power conversion efficiency of 1.3% for carbon-based solar cells.
  • Calculated potential efficiency limits up to 13%, comparable to polymer solar cells.
  • Demonstrated increased photostability and the ability to revert photodegradation.

Conclusions:

  • Carbon nanomaterials represent a viable and highly stable alternative for active layers in solar cells.
  • This work establishes a new strategy for efficient, solution-processable, photostable carbon-based thin-film solar cells.
  • Untapped potential exists for numerous carbon materials in photovoltaic applications.