TY - CONF A1 - Haeberle, Jörg A1 - Richter, Matthias A1 - Schmeißer, Dieter A1 - Galazka, Zbigniew A1 - Janowitz, Christoph T1 - Resonant Photoemission at the O1s threshold to characterize In2O3 single crystals T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft N2 - We report on spectroscopic investigations on In2O3 single crystals. We focus on the detailed analysis of the O1s resonance profile by resonant photoelectron spectroscopy (resPES). From these we analyze the electronic structure and assign the O2p- and In5sp state to build the valence band and the conduction band in different contributions, respectively. This is deduced from constant final state spectra on the O-KLL-Auger along the O K-edge and In M4,5-edge and a comparison to the corresponding X-ray absorption spectroscopy data. We also identify several types of defects. A broad band of oxygen derived defects is identified in the valence band and extends throughout the gap. Small polarons are attributed to cause an anti-resonance in the constant initial states around the O1s threshold. In addition, an Auger decay separated by the O-KLL is present at O-K resonance and indicates the existence of localized charge transfer states which involves In5sp states. Finally, we are able to distinguish two different oxygen species from the resPES data. One corresponds to theintrinsic In2O3 structure and the other is a non-corresponding species. KW - resonant photoelectron spectroscopy KW - In2O3 Y1 - 2016 UR - https://opus4.kobv.de/opus4-UBICO/frontdoor/index/index/docId/17124 UR - http://www.dpg-verhandlungen.de/year/2013/conference/regensburg/part/mm/session/15/contribution/57?lang=de PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER -