Ultra-high aspect ratio copper nanowires as transparent conductive electrodes for dye sensitized solar cells

Zhaozhao Zhu, Trent Mankowski, Ali Sehpar Shikoh, Farid Touati, Mohieddine A. Benammar, Masud Mansuripur, Charles M. Falco

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


We report the synthesis of ultra-high aspect ratio copper nanowires (CuNW) and fabrication of CuNW-based transparent conductive electrodes (TCE) with high optical transmittance (>80%) and excellent sheet resistance (Rs <30 Ω/sq). These CuNW TCEs are subsequently hybridized with aluminum-doped zinc oxide (AZO) thin-film coatings, or platinum thin film coatings, or nickel thin-film coatings. Our hybrid transparent electrodes can replace indium tin oxide (ITO) films in dye-sensitized solar cells (DSSCs) as either anodes or cathodes. We highlight the challenges of integrating bare CuNWs into DSSCs, and demonstrate that hybridization renders the solar cell integrations feasible. The CuNW/AZO-based DSSCs have reasonably good open-circuit voltage (Voc = 720 mV) and short-circuit current-density (Jsc = 0.96 mA/cm2), which are comparable to what is obtained with an ITO-based DSSC fabricated with a similar process. Our CuNW-Ni based DSSCs exhibit a good open-circuit voltage (Voc = 782 mV) and a decent short-circuit current (Jsc = 3.96 mA/cm2), with roughly 1.5% optical-to-electrical conversion efficiency.

Original languageEnglish (US)
Title of host publicationThin Films for Solar and Energy Technology VIII
EditorsMowafak M. Al-Jassim, Michael J. Heben
ISBN (Electronic)9781510602632
StatePublished - 2016
EventThin Films for Solar and Energy Technology VIII - San Diego, United States
Duration: Aug 28 2016Aug 29 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherThin Films for Solar and Energy Technology VIII
Country/TerritoryUnited States
CitySan Diego


  • copper nanowires
  • dye-sensitized solar cells
  • nano-materials
  • transparent conductive electrodes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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