Composition at the CuInSe2 – ZnO interface: copper-depletion induced by diethyl-zinc

نویسندگان

  • A. Hofmann
  • E. Janocha
  • Wolfram Jaegermann
چکیده

The interface formation between epitaxial CuInSe2(112) films and ZnO deposited by metal-organic MBE is investigated by photoelectron spectroscopy. Reaction of diethyl-zinc with CuInSe2 leads to the formation of an intrinsic ZnSe layer and copper-depletion of the interface. This is associated with Zn doping of the chalcopyrite surface and a Fermi level shift towards the conduction band. The implications on the band alignment are discussed.

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تاریخ انتشار 2014