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要旨:
Hard x-ray photoelectron spectroscopy is used to examine the partial
density of states of Cu(In,Ga)Se-2 (CIGSe), a semiconducting component
of solar cells. The investigated, thin Cu(In,Ga)(2) films were produced
by multi-stage co-evaporation. Details of the measured core level and
valence band spectra are compared to the calculated density of states.
The semiconducting type electronic structure of Cu(In,Ga)(2) is clearly
resolved in the hard x-ray photoelectron spectra. (C) 2012 American
Institute of Physics. [doi: 10.1063/1.3687197]
