4.8 Article

Ion doping of graphene for high-efficiency heterojunction solar cells

Journal

NANOSCALE
Volume 5, Issue 5, Pages 1945-1948

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2nr33795a

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Funding

  1. Beijing Natural Science Foundation [2122027]
  2. National Program on Key Basic Research Project [2011CB013000]
  3. National Science Foundation of China [50972067]

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We demonstrated the p-type chemical doping by chlorine and nitrate anions to enhance the Schottky junction in the solar cell. Nitrate ions were found to be more effective for reducing the sheet resistance and enlarging the work function of graphene for effective charge separation and transport, and the efficiency was increased to 9.2% by a factor of 1.68 under AM 1.5 illumination.

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