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Creator:: Zakutayev, Andriy, Tate, Janet, Platt, Heather A. S., Keszler, Douglas A., Hein, Corinna, Mayer, Thomas, Klein, Andreas, and Jaegermann, Wolfram
Abstract:: BaCuChF (Ch=S,Se,Te) surfaces and BaCuSeF interfaces with zinc phthalocyanine (ZnPc) were studied by photoelectron spectroscopy. BaCuChF compounds oxidize when exposed to ambient atmosphere. Se capping layers were studied as a means to produce representative surfaces for photoelectron spectroscopic measurements. Decapped BaCuSeF surfaces remain O-free and C-free when the Se layer...
Resource Type:: Article
Full Text:: . The films were 200 nm thick, as measured by a surface profilometer. X-ray diffraction �XRD

Creator:: Yanagi, Hiroshi, Tate, Janet, Park, Sangmoon, Park, Cheol-Hee, and Keszler, Douglas A.
Abstract:: BaCuQF (Q=S,Se) materials, candidate transparent p-type conductors, were prepared by solid-state reaction, and their bulk electrical and optical properties were evaluated. The room-temperature Seebeck coefficient and electrical conductivity of undoped BaCuQF pellets were +56 μV/K and 0.088 S/cm, respectively, for the sulfide fluoride, and +32 μV/K and 0.061 S/cm, respectively,...
Resource Type:: Article
Full Text:: characterized by powder x-ray diffraction on a Siem D5000 diffractometer; they were predominantly single pha

Creator:: Zakutayev, A., Tate, Janet, and Schneider, G.
Abstract:: Native point defects, defect complexes, and oxygen impurities in BaCuChF were studied using density functional theory calculations, self-consistent thermodynamic simulations, and various experimental techniques. Unintentional p-type conductivity in BaCuChF is explained by the presence of copper vacancies with transition levels in the valence band. These acceptor-like defects are partially compensated...
Resource Type:: Article
Full Text:: experimental x-ray photoemission spectroscopy �XPS� spectra3 allows for a cor- rection of the valence band

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