Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9%

We report on solid-state mesoscopic heterojunction solar cells employing nanoparticles (NPs) of methyl ammonium lead iodide (CH(3)NH(3))PbI(3) as light harvesters. The perovskite NPs were produced by reaction of methylammonium iodide with PbI(2) and deposited onto a submicron-thick mesoscopic TiO(2) film, whose pores were infiltrated with the hole-conductor spiro-MeOTAD. Illumination with standard AM-1.5 sunlight generated large photocurrents (J(SC)) exceeding 17 mA/cm(2), an open circuit photovoltage (V(OC)) of 0.888 V and a fill factor (FF) of 0.62 yielding a power conversion efficiency (PCE) of 9.7%, the highest reported to date for such cells. Femto second laser studies combined with photo-induced…

• NR
  National Research Foundation
• ÉP
  École Polytechnique Fédérale de Lausanne
• SU
  Sungkyunkwan University
• MO
  Ministry of Knowledge Economy

  Award: 20103020010010
• NR
  National Research Foundation of Korea
• KA
  King Abdullah University of Science and Technology

  Award: KUS-C1-015-21
• MO
  Ministry of Education, Science and Technology

  Awards: R31-2008-10029, 2010-0014992, 2010-0028821
• KI
  Korea Institute of Energy Technology Evaluation and Planning