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@ARTICLE{Sick:840396,
      author       = {Sick, Torben and Hufnagel, Alexander G. and Kampmann,
                      Jonathan and Kondofersky, Ilina and Calik, Mona and Rotter,
                      Julian M. and Evans, Austin and Döblinger, Markus and
                      Herbert, Simon and Peters, Kristina and Böhm, Daniel and
                      Knochel, Paul and Medina, Dana D. and Fattakhova-Rohlfing,
                      Dina and Bein, Thomas},
      title        = {{O}riented {F}ilms of {C}onjugated 2{D} {C}ovalent
                      {O}rganic {F}rameworks as {P}hotocathodes for {W}ater
                      {S}plitting},
      journal      = {Journal of the American Chemical Society},
      volume       = {140},
      number       = {6},
      issn         = {0002-7863},
      address      = {Washington, DC},
      publisher    = {American Chemical Society},
      reportid     = {FZJ-2017-07929},
      pages        = {2085 - 2092},
      year         = {2017},
      abstract     = {Light-driven water electrolysis at a semiconductor surface
                      is a promising way to generate hydrogen from sustainable
                      energy sources, but its efficiency is limited by the
                      performance of available photoabsorbers. Here we report the
                      first time investigation of covalent organic frameworks
                      (COFs) as a new class of photoelectrodes. The presented
                      2D-COF structure is assembled from aromatic
                      amine-functionalized tetraphenylethylene and thiophene
                      dialdehyde building blocks to form conjugated polyimine
                      sheets, which π-stack in the third dimension to create
                      photoactive porous frameworks. Highly oriented COF films
                      absorb light in the visible range to generate photo-excited
                      electrons that diffuse to the surface and are transferred to
                      the electrolyte resulting in proton reduction and hydrogen
                      evolution. The observed photoelectrochemical activity of the
                      2D-COF films and their photocorrosion stability in water
                      pave the way for a novel class of photoabsorber materials
                      with versatile optical and electronic properties that are
                      tunable through the selection of appropriate building blocks
                      and their three-dimensional stacking.},
      cin          = {IEK-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29249151},
      UT           = {WOS:000425475300025},
      doi          = {10.1021/jacs.7b06081},
      url          = {https://juser.fz-juelich.de/record/840396},
}