Time-resolved pump and probe x-ray absorption fine structure spectroscopy at 
beamline P11 at PETRA III

Göries, D.; Dicke, B.; Roedig, P.; Stübe, N.; Meyer, J.; Galler, A.; Gawelda, W.; Britz, Alexander; Geßler, P.; Namin, H. Sotoudi; Beckmann, A.; Schlie, M.; Warmer, M.; Naumova, M.; Bressler, C.; Rübhausen, M.; Weckert, E.; Meents, A.

doi:10.1063/1.4948596

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Time-resolved pump and probe x-ray absorption fine structure spectroscopy at beamline P11 at PETRA III

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Britz, Alexander
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
European XFEL, Albert-Einstein Ring 19, 22761 Hamburg, Germany;
The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany;

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引用

Göries, D., Dicke, B., Roedig, P., Stübe, N., Meyer, J., Galler, A., Gawelda, W., Britz, A., Geßler, P., Namin, H. S., Beckmann, A., Schlie, M., Warmer, M., Naumova, M., Bressler, C., Rübhausen, M., Weckert, E., & Meents, A. (2016). Time-resolved pump and probe x-ray absorption fine structure spectroscopy at beamline P11 at PETRA III. Review of Scientific Instruments, 87(5):. doi:10.1063/1.4948596.

引用: https://hdl.handle.net/11858/00-001M-0000-002D-7DB5-8

要旨

We report about the development and implementation of a new setup for time-resolved X-ray absorption fine structure spectroscopy at beamline P11 utilizing the outstanding source properties of the low-emittance PETRA III synchrotron storage ring in Hamburg. Using a high intensity micrometer-sized X-ray beam in combination with two positional feedback systems, measurements were performed on the transition metal complex fac-Tris[2-phenylpyridinato-C2,N]iridium(III) also referred to as fac-Ir(ppy)3. This compound is a representative of the phosphorescent iridium(III) complexes, which play an important role in organic light emitting diode (OLED) technology. The experiment could directly prove the anticipated photoinduced charge transfer reaction. Our results further reveal that the temporal resolution of the experiment is limited by the PETRA III X-ray bunch length of ∼103 ps full width at half maximum (FWHM).