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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

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 (US)
Pages (from-to)5308-5314
Number of pages7
JournalNano letters
Volume14
Issue number9
DOIs
StatePublished - Sep 10 2014

Keywords

  • 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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