Polychiral semiconducting carbon nanotube-fullerene solar cells

Maogang Gong, Tejas A. Shastry, Yu Xie, Marco Bernardi, Daniel Jasion, Kyle A. Luck, Tobin J. Marks, Jeffrey C. Grossman, Shenqiang Ren, Mark C. Hersam

Research output: Contribution to journalArticlepeer-review

87 Citations (Scopus)


Single-walled carbon nanotubes (SWCNTs) have highly desirable attributes for solution-processable thin-film photovoltaics (TFPVs), such as broadband absorption, high carrier mobility, and environmental stability. However, previous TFPVs incorporating photoactive SWCNTs have utilized architectures that have limited current, voltage, and ultimately power conversion efficiency (PCE). Here, we report a solar cell geometry that maximizes photocurrent using polychiral SWCNTs while retaining high photovoltage, leading to record-high efficiency SWCNT-fullerene solar cells with average NREL certified and champion PCEs of 2.5% and 3.1%, respectively. Moreover, these cells show significant absorption in the near-infrared portion of the solar spectrum that is currently inaccessible by many leading TFPV technologies.

Original languageEnglish
Pages (from-to)5308-5314
Number of pages7
JournalNano letters
Issue number9
Publication statusPublished - Sep 10 2014


  • bulk heterojunction
  • carbon nanomaterials
  • nanowires
  • photovoltaic

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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