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@ARTICLE{Sun:187199,
      author       = {Sun, Shuangyong and Salim, Teddy and Mathews, Nripan and
                      Duchamp, Martial and Boothroyd, Christopher Brian and Xing,
                      Guichuan and Sum, Tze Chien and Lam, Yeng Ming},
      title        = {{T}he origin of high efficiency in low-temperature
                      solution-processable bilayer organometal halide hybrid solar
                      cells},
      journal      = {Energy $\&$ environmental science},
      volume       = {7},
      number       = {1},
      issn         = {1754-5692},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {FZJ-2015-00873},
      pages        = {399-407},
      year         = {2014},
      abstract     = {This work reports a study into the origin of the high
                      efficiency in solution-processable bilayer solar cells based
                      on methylammonium lead iodide (CH3NH3PbI3) and
                      [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM). Our
                      cell has a power conversion efficiency (PCE) of $5.2\%$
                      under simulated AM 1.5G irradiation (100 mW cm−2) and an
                      internal quantum efficiency of close to $100\%,$ which means
                      that nearly all the absorbed photons are converted to
                      electrons and are efficiently collected at the electrodes.
                      This implies that the exciton diffusion, charge transfer and
                      charge collection are highly efficient. The high exciton
                      diffusion efficiency is enabled by the long diffusion length
                      of CH3NH3PbI3 relative to its thickness. Furthermore, the
                      low exciton binding energy of CH3NH3PbI3 implies that
                      exciton splitting at the CH3NH3PbI3/PC61BM interface is very
                      efficient. With further increase in CH3NH3PbI3 thickness, a
                      higher PCE of $7.4\%$ could be obtained. This is the highest
                      efficiency attained for low temperature solution-processable
                      bilayer solar cells to date.},
      cin          = {PGI-5},
      ddc          = {690},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {42G - Peter Grünberg-Centre (PG-C) (POF2-42G41)},
      pid          = {G:(DE-HGF)POF2-42G41},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000329550700030},
      doi          = {10.1039/c3ee43161d},
      url          = {https://juser.fz-juelich.de/record/187199},
}