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Ultra-high aspect ratio copper nanowires as transparent conductive electrodes for dye sensitized solar cells
Author(s): Zhaozhao Zhu; Trent Mankowski; Ali Sehpar Shikoh; Farid Touati; Mohieddine A. Benammar; Masud Mansuripur; Charles M. Falco
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Paper Abstract

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.

Paper Details

Date Published: 23 September 2016
PDF: 8 pages
Proc. SPIE 9936, Thin Films for Solar and Energy Technology VIII, 993603 (23 September 2016); doi: 10.1117/12.2237406
Show Author Affiliations
Zhaozhao Zhu, College of Optical Sciences, The Univ. of Arizona (United States)
Trent Mankowski, College of Optical Sciences, The Univ. of Arizona (United States)
Ali Sehpar Shikoh, Qatar Univ. (Qatar)
Farid Touati, Qatar Univ. (Qatar)
Mohieddine A. Benammar, Qatar Univ. (Qatar)
Masud Mansuripur, College of Optical Sciences, The Univ. of Arizona (United States)
Charles M. Falco, College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 9936:
Thin Films for Solar and Energy Technology VIII
Michael J. Heben; Mowafak M. Al-Jassim, Editor(s)

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



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