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@ARTICLE{Roth:454732,
      author       = {Roth, Friedrich and Borgwardt, Mario and Wenthaus, Lukas
                      and Mahl, Johannes and Palutke, Steffen and Brenner, Günter
                      and Mercurio, Giuseppe and Molodtsov, Serguei and Wurth,
                      Wilfried and Gessner, Oliver and Eberhardt, Wolfgang},
      title        = {{D}irect observation of charge separation in an organic
                      light harvesting system by femtosecond time-resolved {XPS}},
      journal      = {Nature Communications},
      volume       = {12},
      number       = {1},
      issn         = {2041-1723},
      address      = {[London]},
      publisher    = {Nature Publishing Group UK},
      reportid     = {PUBDB-2021-00696},
      pages        = {1196 (1-7)},
      year         = {2021},
      abstract     = {The ultrafast dynamics of photon-to-charge conversion in an
                      organic light-harvesting system is studied by femtosecond
                      time-resolved X-ray photoemission spectroscopy (TR-XPS) at
                      the free-electron laser FLASH. This novel experimental
                      technique provides site-specific information about charge
                      separation and enables the monitoring of free charge carrier
                      generation dynamics on their natural timescale, here applied
                      to the model donor-acceptor system CuPc:C$_{60}$. A
                      previously unobserved channel for exciton dissociation into
                      mobile charge carriers is identified, providing the first
                      direct, real-time characterization of the timescale and
                      efficiency of charge generation from low-energy
                      charge-transfer states in an organic heterojunction. The
                      findings give strong support to the emerging realization
                      that charge separation even from energetically disfavored
                      excitonic states is contributing significantly, indicating
                      new options for light harvesting in organic
                      heterojunctions.},
      cin          = {DOOR ; HAS-User / CFEL-UDSS / FS-PS},
      ddc          = {500},
      cid          = {I:(DE-H253)HAS-User-20120731 /
                      I:(DE-H253)CFEL-UDSS-20160914 / I:(DE-H253)FS-PS-20131107},
      pnm          = {631 - Matter – Dynamics, Mechanisms and Control
                      (POF4-631) / 6G2 - FLASH (DESY) (POF4-6G2)},
      pid          = {G:(DE-HGF)POF4-631 / G:(DE-HGF)POF4-6G2},
      experiment   = {EXP:(DE-H253)F-PG2-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:33608532},
      UT           = {WOS:000621496400004},
      doi          = {10.1038/s41467-021-21454-3},
      url          = {https://bib-pubdb1.desy.de/record/454732},
}