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    Silicon spectral response extension through single wall carbon nanotubes in hybrid solar cells

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    Type
    Article
    Authors
    Del Gobbo, Silvano
    Castrucci, P.
    Fedele, S.
    Riele, L.
    Convertino, A.
    Morbidoni, M.
    De Nicola, F.
    Scarselli, M.
    Camilli, L.
    De Crescenzi, M.
    KAUST Department
    KAUST Solar Center (KSC)
    Physical Science and Engineering (PSE) Division
    Date
    2013
    Permanent link to this record
    http://hdl.handle.net/10754/594190
    
    Metadata
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    Abstract
    Photovoltaic devices based on single wall carbon nanotubes (SWCNTs) and n-silicon multiple heterojunctions have been fabricated by a SWCNT film transferring process. We report on the ability of the carbon nanotubes to extend the Si spectral range towards the near ultraviolet (UV) and the near infrared regions. Semiconducting and about metallic SWCNT networks have been studied as a function of the film sheet resistance, Rsh. Optical absorbance and Raman spectroscopy have been used to assign nanotube chirality and electronic character. This gave us hints of evidence of the participation of the metal nanotubes in the photocurrent generation. Moreover, we provide evidence that the external quantum efficiency spectral range can be modulated as a function of the SWCNT network sheet resistance in a hybrid SWCNT/Si solar cell. This result will be very useful to further design/optimize devices with improved performance in spectral regions generally not covered by conventional Si p-n devices. © 2013 The Royal Society of Chemistry.
    Citation
    Del Gobbo S, Castrucci P, Fedele S, Riele L, Convertino A, et al. (2013) Silicon spectral response extension through single wall carbon nanotubes in hybrid solar cells. J Mater Chem C 1: 6752. Available: http://dx.doi.org/10.1039/c3tc31038h.
    Sponsors
    The authors thank Prof. Francesca Nanni of the Department of Chemistry, University of Roma Tor Vergata, for SEM measurements. We acknowledge the financial support of the EOARD (European Office of Aerospace Research and Development) through Air Force Office of Scientific Research Material Command, USAF, under Grant no. FA8655-11-1-3036.
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    Journal of Materials Chemistry C
    DOI
    10.1039/c3tc31038h
    ae974a485f413a2113503eed53cd6c53
    10.1039/c3tc31038h
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; KAUST Solar Center (KSC)

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