Abstract
X-ray absorption near edge structure (XANES) spectra of CuInSe2crystals have been measured at the K edges of Cu and Se, the L1 edgeof In and the L3 edges of all three elements. The spectra areinterpreted using the band structure approach and the self-consistentreal-space multiple-scattering approach. Angular momentum projected localdensities of one-electron states in the conduction band up to 17 eV above theconduction band minimum have been calculated by the LMTO method. Spectralfeatures in the experimental spectra have been correlated with the structuresin the partial densities of states. The contribution of the different atomicstates to the conduction band is discussed. The core-hole effect in the XANESspectra of CuInSe2 is evaluated on the basis of themultiple-scattering calculations.
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